Differential Repair & Installation Kits | AMC & Chrysler

Differential Repair, Rebuild and Installation Kits for AMC and Chrysler Axles 

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.

Axle Bearing and Seal Kits can be found here

A description of each kit type and it’s contents is listed below the following application chart

Differential Repair & Installation Kits
AMC Master Kit Bearing Kit Pinion Kit Mini Kit
MODEL20 IK M20 BK M20 PK M20 MK M20
CHRYSLER Master Kit Bearing Kit Pinion Kit Mini Kit
7.25″ IK C7.25 BK C7.25 PK C7.25 MK C7.25
8″ Front BK C8
8″ Front BK C8B
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
8.75″ 41 Case 2 Pinion IK C8.75 BK C8.75
8.75″ 42 Case 2 Pinion IK C8.75B BK C8.75B PKC8.75B
8.75″ 89 Case 2 Pinion IK C8.75C BK C8.75C PK C8.75C
8.75″ 41 Case 4 Pinion IK C8.75D BK C8.75D
8.75″ 42 Case 4 Pinion IK C8.75E BK C8.75E
8.75″ 89 Case 4 Pinion IK C8.75F BK C8.75F
9.25″ IK C9.25 BKC9.25 PK C9.25 MK C9.25
9.25″ Front BK C9.25F
10.5″ BK C10.5
11.5″ IK C11.5 BK A11.5 MK C11.5

.

Guide to Differential Repair, Rebuild and Installation Kit Contents:

Sierra Gear differential rebuild kits are typically assembled with OEM Components, including Timken or Koyo Bearings and National or Spicer Seals

Master Rebuild Kit (IK) – Our most complete Differential Rebuild Kit.

  • Pinion and Carrier Bearings
  • Pinion Seal
  • Pinion Shims (where applicable)
  • Pinion Nut
  • Crush Sleeve or Depth Shims (where applicable)
  • Ring Gear Bolts (most applications)
  • O-Ring (where applicable)
  • Gear Marking Compound & Brush
  • Loctite
  • Cover Gasket or Silicone
  • Carrier Super Shims (where applicable)
  • Slingers & Baffle (where applicable)
  • Installation Instructions

Bearing Rebuild Kit (BK) – Rebuild kit for installers that already have shims and small parts.

  • Pinion and Carrier Bearings
  • Pinion Seal
  • O-Ring (where applicable)
  • Pinion Nut
  • Crush Sleeve or Depth Shims (where applicable)

Pinion Rebuild Kit (PK) – Ideal for low mileage ring & pinion gear ratio changes with no carrier change.

  • Pinion Bearings
  • Pinion Seal
  • Pinion Shims (where applicable)
  • Crush Sleeve or Depth Shims (where applicable)
  • O-Ring (where applicable)
  • Gear Marking Compound & Brush

Mini Rebuild Kit (MK) – For low mileage vehicles doing ring & pinion gear ratio changes.

  • Pinion Seal
  • Pinion Shims (where applicable)
  • Crush Sleeve or Depth Shims (where applicable)
  • Ring Gear Bolts (most applications)
  • O-Ring (where applicable)
  • Gear Marking Compound & Brush
  • Loctite
  • Carrier Super Shims (where applicable)
  • Installation Instructions

Axle Kit (AK) – Axle Bearing/Wheel Bearing and Seal Kits

  • Axle Bearings
  • Axle Seals
  • Bearing Retainers (where applicable)