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Home
On Sale
SHOP 4WP's HUGE SELECTION
Drivetrain & Differential

3.73 GM Rear SHOP 4WP's HUGE SELECTION

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Your Selection

Gear Ratio
3.73
Popular Axle Manufacture
GM
Axle Location
Rear

Brand

USA Standard Gear (19)

Fitment

Universal Fit (19)

Axle Type

GM 10 Bolt 7.5 Inches (1)
GM 10 Bolt 8.6 Inches (4)
GM 12 Bolt 8.875 Inches (3)
GM 12 Bolt 9.5 Inches (2)
GM 14 Bolt 10.5 Inches (2)
GM 7.5 Inches (2)
GM 8.2 Inches (2)
GM 8.5 Inches (3)

Gear Ratio

3.08 (5)
3.23 (2)
3.42 (12)
3.55 (2)
4.10 (2)
4.11 (17)
4.56 (11)
4.88 (9)
5.13 (2)
5.38 (2)

Part Type

Differential Ring and Pinion (3)
Ring and Pinions (16)

Price Range

$500 to $749 (9)
$750 to $999 (1)
Over $1000 (9)

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3.73 GM Rear On Sale

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USA Standard Gear and Install Kit Packages

From $1,231.89

Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts required to get vehicles off the lift and back on the road quickly
Quick Kits provide a one-stop shopping experience that allows you to easily find the correct parts for common differential repairs at an affordable price
The Gear and Install Kit Includes Axle Bearings & Seals
The Gear and Install Kit Includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable

From $1,231.89

19 Products

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Part Number: UZGZGK2227

USA Standard GM 8.875" Rear 12T 3.73 Gear and Install Kit Package - ZGK2227

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.73 and up gear ratio
The ring gear diameter is 8.875"
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

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$577.89

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USA Standard GM 8.875" Rear 12T 3.73 Gear and Install Kit Package - ZGK2227

Part #: UZGZGK2227

$577.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.73 and up gear ratio
The ring gear diameter is 8.875"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2228

USA Standard GM 8.875" Rear 12T Thick 3.73 Gear and Install Kit Package - ZGK2228

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 thick ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 2.76- 3.42 gear ratio
The ring gear diameter is 8.875"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$577.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 8.875" Rear 12T Thick 3.73 Gear and Install Kit Package - ZGK2228

Part #: UZGZGK2228

$577.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 thick ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 2.76- 3.42 gear ratio
The ring gear diameter is 8.875"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

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Part Number: UZGZGK2233

USA Standard GM 8.875" Rear 12T 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2233

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.875"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,299.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 8.875" Rear 12T 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2233

Part #: UZGZGK2233

$1,299.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.875"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

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Part Number: UZGZGK2238

USA Standard GM 7.5"/7.625" Rear 3.73 Gear and Install Kit Package - ZGK2238

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.23 and up gear ratio
With 27 spline pinion shaft
2.25" OD axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$555.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 7.5"/7.625" Rear 3.73 Gear and Install Kit Package - ZGK2238

Part #: UZGZGK2238

$555.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.23 and up gear ratio
With 27 spline pinion shaft
2.25" OD axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

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Reset Password

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First Name *:

Last Name *:

Email *:

Password *:

Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Part Number: UZGZGK2242

USA Standard GM 7.5" Rear 3.73 Gear and Install Kit Package with 26 Spline Positraction - ZGK2242

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
2.25" axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,231.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 7.5" Rear 3.73 Gear and Install Kit Package with 26 Spline Positraction - ZGK2242

Part #: UZGZGK2242

$1,231.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
2.25" axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

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After you submit your email address, you'll receive an email a link that will let you change your password.

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Create An Account

First Name *:

Last Name *:

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Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

USA Standard GM 7.5/7.625 Rear 3.73 Gear and Install Kit Package with 28 Spline Positraction - ZGK2246

Part Number: UZGZGK2246

USA Standard GM 7.5/7.625 Rear 3.73 Gear and Install Kit Package with 28 Spline Positraction - ZGK2246

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,299.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 7.5/7.625 Rear 3.73 Gear and Install Kit Package with 28 Spline Positraction - ZGK2246

Part #: UZGZGK2246

$1,299.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

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Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Part Number: UZGZGK2249

USA Standard GM 9.5" Rear 3.73 Gear and Install Kit Package - ZGK2249

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.42 and up gear ratio, (Carrier Case Deck Height 2.6" Tall)
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$776.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 9.5" Rear 3.73 Gear and Install Kit Package - ZGK2249

Part #: UZGZGK2249

$776.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.42 and up gear ratio, (Carrier Case Deck Height 2.6" Tall)
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

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Reset Password

Create An Account

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Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Part Number: UZGZGK2253

USA Standard GM 9.5" Rear 3.73 Gear and Install Kit Package with 33 Spline Positraction - ZGK2253

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,799.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard GM 9.5" Rear 3.73 Gear and Install Kit Package with 33 Spline Positraction - ZGK2253

Part #: UZGZGK2253

$1,799.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 12 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
With 27 spline pinion shaft
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

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Reset Password

Create An Account

First Name *:

Last Name *:

Email *:

Password *:

Must be at least 8 alphanumeric characters long and must contain at least 1 number.

Confirm Password *:

Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Part Number: UZGZGK2002

USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2002

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
Differential carrier bearings have 2.891" outside diameter
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,290.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

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USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2002

Part #: UZGZGK2002

$1,290.89

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Fitment: Universal Fit
3.73 ring and pinion gear set
Differential carrier bearings have 2.891" outside diameter
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
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Part Number: UZGZGK2007

USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package - ZGK2007

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM102949/ LM102911 carrier bearing and race with 1.781" inside diameter and 2.891" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
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$560.89

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USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package - ZGK2007

Part #: UZGZGK2007

$560.89

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

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On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM102949/ LM102911 carrier bearing and race with 1.781" inside diameter and 2.891" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2012

USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package - ZGK2012

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM501349 Carrier Bearings with 1.625" inside diameter and 2.891" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
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$551.89

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USA Standard GM 8.5" Rear 3.73 Gear and Install Kit Package - ZGK2012

Part #: UZGZGK2012

$551.89

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM501349 Carrier Bearings with 1.625" inside diameter and 2.891" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

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Part Number: UZGZGK2017

USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2017

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Fitment: Universal Fit
3.73 ring and pinion gear set
Differential carrier bearings have 3.062" outside diameter
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
California Residents: WARNING

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$1,289.89

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USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2017

Part #: UZGZGK2017

$1,289.89

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

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On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
Differential carrier bearings have 3.062" outside diameter
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2022

USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package - ZGK2022

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM603049/ LM603012 carrier bearing and race with 1.781" inside diameter and 3.062" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

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$558.89

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USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package - ZGK2022

Part #: UZGZGK2022

$558.89

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Includes LM603049/ LM603012 carrier bearing and race with 1.781" inside diameter and 3.062" outside diameter
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

+ View More Specs

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2027

USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2027

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
California Residents: WARNING

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$1,381.89

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USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2027

Part #: UZGZGK2027

$1,381.89

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LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.5"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2032

USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package - ZGK2032

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

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$650.89

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USA Standard GM 8.6" Rear 3.73 Gear and Install Kit Package - ZGK2032

Part #: UZGZGK2032

$650.89

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EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The ring gear diameter is 8.5"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2118

USA Standard GM 10.5" Rear 14 Bolt 3.73 Gear and Install Kit Package - ZGK2118

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 14 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
Fits carrier cases designed for 4.10 and down gear ratio
The ring gear diameter is 10.5"
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$746.89

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USA Standard GM 10.5" Rear 14 Bolt 3.73 Gear and Install Kit Package - ZGK2118

Part #: UZGZGK2118

$746.89

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 14 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
Fits carrier cases designed for 4.10 and down gear ratio
The ring gear diameter is 10.5"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2125

USA Standard GM 10.5" Rear 14 Bolt 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2125

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 14 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
Fits carrier cases designed for 4.10 and down gear ratio
The ring gear diameter is 10.5"
California Residents: WARNING

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$1,699.89

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USA Standard GM 10.5" Rear 14 Bolt 3.73 Gear and Install Kit Package with 30 Spline Positraction - ZGK2125

Part #: UZGZGK2125

$1,699.89

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EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 14 bolt rear cover and 12 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
Fits carrier cases designed for 4.10 and down gear ratio
The ring gear diameter is 10.5"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2211

USA Standard GM 8.2" Rear 3.73 Gear and Install Kit Package - ZGK2211

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.08 and up gear ratio
The ring gear diameter is 8.2"
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USA Standard GM 8.2" Rear 3.73 Gear and Install Kit Package - ZGK2211

Part #: UZGZGK2211

$577.89

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Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
Fits carrier cases designed for 3.08 and up gear ratio
The ring gear diameter is 8.2"
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Part Number: UZGZGK2214

USA Standard GM 8.2" Rear 3.73 Gear and Install Kit Package with 28 Spline Positraction - ZGK2214

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.2"
2.25" axle bearings
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

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$1,299.89

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USA Standard GM 8.2" Rear 3.73 Gear and Install Kit Package with 28 Spline Positraction - ZGK2214

Part #: UZGZGK2214

$1,299.89

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Fitment: Universal Fit
3.73 ring and pinion gear set
For applications with 10 bolt rear cover and 10 bolt ring gear
Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts
The gear and install kit includes axle bearings and seals
The gear and install kit includes Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.2"
2.25" axle bearings
California Residents: WARNING

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