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Home
On Sale
Drivetrain & Differential
Performance Axle Components
Ring and Pinions

3.73 GM 12 Bolt 8.875 Inches Universal Fit Ring and Pinions

REFINE BY:

Your Selection

Gear Ratio
3.73
Axle Type
GM 12 Bolt 8.875 Inches
Fitment
Universal Fit

BRAND

Motive Gear (2)
USA Standard Gear (3)

Gear Ratio

3.08 (3)
3.42 (3)
4.11 (5)
4.56 (1)

Popular Axle Manufacture

GM (5)

Axle Type

AMC 20 (1)
Chrysler 8.25 Inches (4)
Chrysler 8.75in Drop Out (2)
Dana 30 (1)
Dana 30 Standard (4)
Dana 30 Standard|Dana 30 TJ (1)
Dana 30 Reverse (2)
Dana 30 TJ (1)
Dana 30 TJ|Dana 44 JK (1)
Dana 30 JK (1)
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Dana 35|Dana 30A KJ (1)
Dana 35 (2)
Dana 35|Dana 30 TJ (1)
Dana 44 AdvanTEK (4)
Dana 44 (7)
Dana 44 JK (1)
Dana 44 Reverse (1)
Dana 60 (2)
Dana 70 (2)
Dana 80 (1)
Ford 7.5 Inches (1)
Ford 8.8 Inches (10)
Ford 9.75 Inches (8)
Ford 10.25 Inches (1)
Ford 10.5 Inches (8)
Ford 10.5 Inches|Ford 10.25 Inches (1)
GM 7.5 Inches (2)
GM 7.25 Inches IFS (1)
GM 8.2 Inches (2)
GM 10 Bolt 7.5 Inches (1)
GM 10 Bolt 7.625 Inches|GM 10 Bolt 7.5 Inches (1)
GM 8.5 Inches (4)
GM 10 Bolt 8.5 Inches|GM 10 Bolt 8.6 Inches (1)
GM 10 Bolt 8.6 Inches (4)
GM 12 Bolt 9.5 Inches (3)
GM 14 Bolt 9.5 Inches (1)
GM 14 Bolt 10.5 Inches (2)
GM 14 Bolt 10.5 Inches|GM 10 Bolt 8.5 Inches (1)
AAM 11.5 Inches (4)
Dana 30 JL (1)
Dana 60 Reverse (1)
Dana 80 11.25 Inches (10)

Axle Location

Rear (5)

PRICE RANGE

$300 to $399 (2)
$500 to $749 (2)
Over $1000 (1)

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3.73 GM 12 Bolt 8.875 Inches Universal Fit On Sale

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Motive Gear Ring and Pinion Sets

Motive Gear AMC Model 20 3.31 Ratio

From $316.99

Ring and Pinion Sets
Stock performance ring and pinions
Easy setup, superior strength, quality, and a vast ratio selection
Backed by rigid quality control processes
2 year / 100,000 mile no-nonsense warranty
California Residents: WARNING

From $316.99

3.8 3.8 (140)

USA Standard Gear and Install Kit Packages

From $1,299.89

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 $1,299.89

5 Products

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Motive Gear GM 12 Bolt Truck 8.875 Inch 3.73 Ratio Ring and Pinion - GM12-373

Part Number: MIDGM12-373

Motive Gear GM 12 Bolt Truck 8.875 Inch 3.73 Ratio Ring and Pinion - GM12-373

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Fitment: Universal Fit
For Use With 3.73 And Up Carrier
Forged 8620 Steel
Heat Treated
California Residents: WARNING

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Qualifies for Free Shipping

$354.99

$438.22

Only 1 left in Stock ?

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Motive Gear GM 12 Bolt Truck 8.875 Inch 3.73 Ratio Ring and Pinion - GM12-373

Part #: MIDGM12-373

$354.99

$438.22

Only 1 left 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:

Only 1 left in Stock ?

Fitment: Universal Fit
For Use With 3.73 And Up Carrier
Forged 8620 Steel
Heat Treated
California Residents: WARNING

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Lowest Price! Guaranteed! Request A Price Match

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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Motive Gear GM 12 Bolt Truck 8.875 Inch Thick 3.73 Ratio Ring and Pinion - GM12-373X

Part Number: MIDGM12-373X

Motive Gear GM 12 Bolt Truck 8.875 Inch Thick 3.73 Ratio Ring and Pinion - GM12-373X

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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
For Use With 2.76-3.42 Carrier
Forged 8620 Steel
Heat Treated
California Residents: WARNING

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$316.99

$438.21

On Backorder

Email me when this product comes in stock

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EASY RETURNS

Motive Gear GM 12 Bolt Truck 8.875 Inch Thick 3.73 Ratio Ring and Pinion - GM12-373X

Part #: MIDGM12-373X

$316.99

$438.21

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
For Use With 2.76-3.42 Carrier
Forged 8620 Steel
Heat Treated
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

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

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Part Number: UZGZGK2227

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

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 3.73 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

$577.89

On Backorder

Email me when this product comes in stock

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EASY RETURNS

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!

No, thanks

Sign In Or Create an Account

Create An Account

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Part Number: UZGZGK2228

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

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 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

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*

Choose Your Secure Checkout Method

Email Address

Password

Remember me

Reset Password

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First Name *:

Last Name *:

Email *:

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

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Add to Wishlist

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

Item added to Cart.

VIEW CART

3.73 GM 12 Bolt 8.875 Inches Universal Fit Ring and Pinions

3.73 GM 12 Bolt 8.875 Inches Universal Fit On Sale

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$354.99

$438.22

$354.99

$438.22

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$316.99

$438.21

$316.99

$438.21

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$577.89

$577.89

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$577.89

$577.89

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

$1,299.89

$1,299.89

How to Get it

PROMOTIONS AUTOMATICALLY APPLIED

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