For use with AMC and AAM / Chrysler Axles

Differential Repair, Rebuild and Installation Kits for AMC and AAM / American Axle

Differential Repair and Installation Kits from Sierra Gear and Axle are the most complete in the industry. We assemble each kit using only the highest quality components. Each of our kits are designed to ensure a trouble-free installation and long-lasting performance. Several different kits are available for each application, each tailored for the type of differential repair being performed. Whether you’re doing a complete differential repair, differential gear ratio change, budget rebuild or pinion bearing replacement, we have got the ideal kit for you.

To view KIT CONTENTS and descriptions, please click HERE and scroll to the bottom of the page

Axle Bearing and Seal Kits can be found HERE


Application Chart:

Ring and Pinion Repair and Installation Kits application chart.

Ring and Pinion Gear Catalog

Differential Repair & Installation Kits

 AMC Model 20  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 MODEL 20  IK M20  BK M20  PK M20  MK M20
 AMC Model 35  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 MODEL 35  IK M35  BK M35  PK M35  MK M35
 MODEL 35 – WJ  IK M35WJ  BK M35  PK M35  MK M35WJ
 MODEL 35 – 30 Spline  IK SUPERM35  BK SUPERM35  PK M35  MK M35
 Chrysler 7.25″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 7.25″  IK C7.25  BK C7.25  PK C7.25  MK C7.25
 Chrysler 8″ IFS  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 8″ IFS – 1/2 Ton – ’03 & Up  IK C8  BK C8  PK C8  MK C8
 8″ IFS – 1/4 Ton – ’00-’03  IK C8B  BK C8B  PK C8B  MK C8B
 8″ IFS – ’04 & Up
1/4 Ton
 8″ IFS – ’05 & Up
Grand Cherokee / Commander
 Chrysler 8.25″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 8.25″ – ’70-’75  IK C8.25  BK C8.25  PK C8.25  MK C8.25
 8.25″ – ’76 & Up  IK C8.25B  BK C8.25B  PK C8.25B  MK C8.25
 8.25″ – ’05 & Up
WK – Grand Cherokee
 IK C8.25WK  BK C8.25WK  PK C8.25WK  MK C8.25WK
 Chrysler 8.75″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 8.75″ – 741 Case
 IK C8.75  BK C8.75  MK C8.75AD
 8.75″ – 742 Case
LM104949 Brg.
 IK C8.75B  BK C8.75B  PKC8.75B  MK C8.75BE
 8.75″ – 489 Case
LM104949 Brg.
 IK C8.75C  BK C8.75C  PK C8.75C  MK C8.75CF
 8.75″ – 741 Case
25590 Brg.
 IK C8.75D  BK C8.75D  MK C8.75AD
 8.75″ – 742 Case
25590 Brg.
 IK C8.75E  BK C8.75E  PKC8.75B  MK C8.75BE
 8.75″ – 489 Case
25590 Brg.
 IK C8.75F  BK C8.75F  PK C8.75C  MK C8.75CF
 Chrysler 9.25″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 9.25″  IK C9.25  BKC9.25  PK C9.25  MK C9.25
 9.25″ ZF ’11 & Up  IK C9.25B  BKC9.25B  PK C9.25B  MK C9.25B
 AAM / Chrysler 9.25″ Front  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 AAM 9.25″ Front  IK C9.25F  BK C9.25F  PK C9.25F  MK C9.25F
 AAM / Chrysler 10.5″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 10.5″  IK C10.5  BK C10.5  PK C10.5  MK C10.5
 AAM / Chrysler 11.5″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 AAM 11.5″ – ’01-’10 GM & Dodge/Ram  IK A11.5  BK A11.5  PK A11.5  MK A11.5
 AAM 11.5″ – ’11-’13 Dodge Ram, ’11-’18 GM  IK A11.5B  BK A11.5B  PK A11.5B
 AAM 11.5″ – Dodge Ram ’14 – ’18
For use with 1st gen R&P
 IK A11.5C  BK A11.5C  PK A11.5C
 AAM 11.5″ – Dodge Ram ’14 – ’18
For use with 2nd gen R&P
 BK A11.5D
 AAM 11.5″ – ’19 & Up GM 3500  BK A11.5E
 AAM 11.8″ R&P into ’05 -’13 11.5″ Housing  IK A11.8B  BK A11.8B  PK A11.8B
 AAM 11.8″ R&P into ’14 & Up 11.5″ Housing  IK A11.8C  BK A11.8C  PK A11.8C
 AAM / Chrysler 11.8″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
11.8” AAM ‘14 & Up
Ram 3500 – 6.7 Diesel
 IK A11.8  BK A11.8

Find a Dealer

Find the application and ratio you need? Locate a Sierra Gear & Axle Distributor near you.

Gear Calculator

Doing a gear ratio change but not sure what you want? Try our Differential Gear Calculator.