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.
Differential Repair & Installation Kits |
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| 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 |
IK C8C | BK C8B | PK C8C | MK C8C |
| 8″ IFS – ’05 & Up Grand Cherokee / Commander |
IK C8WK | BK C8WK | PK C8WK | MK C8WK |
| 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 LM104949 |
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 | ||
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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.