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On Sale

3.91 Email Link 3.91

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Gear Ratio
3.91
sku.PromoType
Email Link

Brand

Crown Automotive (1)
Dana Spicer (1)
USA Standard Gear (10)

Fitment

Direct Fit (1)
Universal Fit (11)

Axle Location

Front (1)
Rear (11)

Axle Type

Chrysler 8.25 Inches (3)
Chrysler 9.25 Inches (7)
Dana 30 Standard|Dana 30 TJ (1)
Dana 44 (1)

Gear Ratio

2.71 (1)
3.07 (12)
3.08 (6)
3.21 (7)
3.23 (2)
3.27 (2)
3.31 (5)
3.42 (13)
3.45 (1)
3.54 (10)
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3.55 (32)
3.70 (1)
3.73 (73)
3.90 (1)
3.92 (1)
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4.10 (22)
4.11 (48)
4.27 (4)
4.30 (12)
4.55 (1)
4.56 (44)
4.88 (36)
5.13 (8)
5.38 (14)
5.46 (1)
5.86 (2)
5.89 (1)
6.17 (2)
7.17 (1)

Popular Axle Manufacture

Chrysler (10)
Dana (2)

Part Type

Differential Ring and Pinion (2)
Ring and Pinions (8)
Vintage Model 30 Front Axle (1)
YJ Wrangler Model 44 Rear Axle (1)

Price Range

$400 to $499 (2)
$500 to $749 (2)
$750 to $999 (3)
Over $1000 (5)

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3.91 Email Link On Sale

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Dana Spicer Ring and Pinion Kits

From $441.99

Fits most 1996 and earlier standard rotation front and rear axles
For use with 3.54 and down carrier
Requires D/S706016X differential bearing kit to complete installation
Includes pinion bearings
Includes pinion seal
Includes pinion shim pack
Includes pinion preload shim pack or crush sleeve
Includes pinion nut
Includes differential shim pack
Includes ring gear bolts
Superior Metallurgy ensures more consistent, higher quality gears
Hobbed and shaved gearing provides optimal mating to minimize stress and maximize life
Precision heat-treating and shot-peening delivers consistent quality
California Residents: WARNING

From $441.99

4.5 4.5 (4)

Crown Automotive Ring And Pinion Sets

Crown Automotive Ring And Pinion Set

From $919.99

Crown Automotive Ring And Pinion Set
California Residents: WARNING

From $919.99

USA Standard Gear and Install Kit Packages

From $1,076.89

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 $1,076.89

12 Products

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Crown Automotive Dana 30 WJ Front 3.91 Ratio Ring and Pinion - 5014402AA

Part Number: CRO5014402AA

Crown Automotive Dana 30 WJ Front 3.91 Ratio Ring and Pinion - 5014402AA

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Fitment: Direct Fit
Dana 30 front axle
3.91 Ring and Pinion Set
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Crown Automotive Dana 30 WJ Front 3.91 Ratio Ring and Pinion - 5014402AA

Part #: CRO5014402AA

$919.99

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Fitment: Direct Fit
Dana 30 front axle
3.91 Ring and Pinion Set
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Part Number: UZGZGK2072

USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2072

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Fitment: Universal Fit
3.90 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 ring gear diameter is 9.25"
1.62" ID axle bearings and seal
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USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2072

Part #: UZGZGK2072

$699.89

On Backorder

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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
3.90 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 ring gear diameter is 9.25"
1.62" ID axle bearings and seal
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

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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: UZGZGK2075

USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package with 31 Spline Positraction - ZGK2075

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How to Get it

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

Ship to Home:

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Fitment: Universal Fit
3.90 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 9.25"
1.62" axle bearings
California Residents: WARNING

+ View More Specs

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$1,399.89

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USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package with 31 Spline Positraction - ZGK2075

Part #: UZGZGK2075

$1,399.89

On Backorder

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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
3.90 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 9.25"
1.62" 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!

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Part Number: UZGZGK2078

USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2078

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

Ship to Home:

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Fitment: Universal Fit
3.90 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 ring gear diameter is 9.25"
1.705" axle bearings and seal
California Residents: WARNING

+ View More Specs

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PROMOTIONS AUTOMATICALLY APPLIED

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$799.89

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USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2078

Part #: UZGZGK2078

$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
3.90 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 ring gear diameter is 9.25"
1.705" axle bearings and seal
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: UZGZGK2081

USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package with 31 Spline Positraction - ZGK2081

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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
3.90 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 9.25"
1.7" axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,499.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

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USA Standard Chrysler 9.25" Rear 3.91 Gear and Install Kit Package with 31 Spline Positraction - ZGK2081

Part #: UZGZGK2081

$1,499.89

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
3.90 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 9.25"
1.7" 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!

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Part Number: UZGZGK2084

USA Standard Chrysler ZF 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2084

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How to Get it

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

Ship to Home:

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Fitment: Universal Fit
3.90 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 ring gear diameter is 9.25"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$881.89

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EASY RETURNS

USA Standard Chrysler ZF 9.25" Rear 3.91 Gear and Install Kit Package - ZGK2084

Part #: UZGZGK2084

$881.89

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
3.90 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 ring gear diameter is 9.25"
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: UZGZGK2087

USA Standard Chrysler ZF 9.25" Rear 3.91 Gear and Install Kit Package with Positraction - ZGK2087

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
3.90 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 9.25"
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,699.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard Chrysler ZF 9.25" Rear 3.91 Gear and Install Kit Package with Positraction - ZGK2087

Part #: UZGZGK2087

$1,699.89

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
3.90 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 9.25"
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

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Part Number: UZGZGK2188

USA Standard Chrysler 8.25" Rear 3.91 Gear and Install Kit Package - ZGK2188

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How to Get it

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

Ship to Home:

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Fitment: Universal Fit
3.90 ring and pinion gear set
For applications with 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 2.56 and up gear ratio
The ring gear diameter is 8.25"/ 213mm
1.618" ID axle bearings
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$515.89

On Backorder

Email me when this product comes in stock

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EASY RETURNS

USA Standard Chrysler 8.25" Rear 3.91 Gear and Install Kit Package - ZGK2188

Part #: UZGZGK2188

$515.89

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
3.90 ring and pinion gear set
For applications with 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 2.56 and up gear ratio
The ring gear diameter is 8.25"/ 213mm
1.618" ID 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

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Password

Remember me

Reset Password

An email is sent to .

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Part Number: UZGZGK2195

USA Standard Chrysler 8.25" Rear 3.91 Gear and Install Kit Package with Positraction - ZGK2195

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
3.90 ring and pinion gear set
For applications with 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 8.25"/ 213mm
1.618" ID axle bearings
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,136.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard Chrysler 8.25" Rear 3.91 Gear and Install Kit Package with Positraction - ZGK2195

Part #: UZGZGK2195

$1,136.89

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
3.90 ring and pinion gear set
For applications with 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 8.25"/ 213mm
1.618" ID 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

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Part Number: UZGZGK2202

USA Standard Chrysler 8.25"/ 213mm Rear 3.91 Gear and Install Kit Package - ZGK2202

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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
3.90 ring and pinion gear set
For applications with 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
Fits carrier cases designed for 2.56 and up gear ratio
The ring gear diameter is 8.25"/ 213mm
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$478.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard Chrysler 8.25"/ 213mm Rear 3.91 Gear and Install Kit Package - ZGK2202

Part #: UZGZGK2202

$478.89

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
3.90 ring and pinion gear set
For applications with 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
Fits carrier cases designed for 2.56 and up gear ratio
The ring gear diameter is 8.25"/ 213mm
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

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: UZGZGK2207

USA Standard Chrysler 8.25"/ 213mm Rear 3.91 Gear and Install Kit Package with 29 Spline Positraction - ZGK2207

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
3.90 ring and pinion gear set
For applications with 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 Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.25"/ 213mm
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping

$1,076.89

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

USA Standard Chrysler 8.25"/ 213mm Rear 3.91 Gear and Install Kit Package with 29 Spline Positraction - ZGK2207

Part #: UZGZGK2207

$1,076.89

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
3.90 ring and pinion gear set
For applications with 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 Yukon Dura Grip Clutch Style Limited Slip (LSD)
All positraction units are fully rebuildable
The ring gear diameter is 8.25"/ 213mm
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