Differential Repair & Installation Kits | GM

Differential Repair Kits for GM Axles

Differential Repair & Installation Kits for GM and Chevy 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.

Differential Kit contents and a description of each kit type is located at the bottom of this page, below the application chartDifferential Repair Kit Ring Pinion DealersFind the install kit you need? Locate a Sierra Gear & Axle Distributor near you, or call (800) 792-2714

Axle Bearing and Seal Kits can be found here

 GM Application:  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 ’55 Truck / Passenger  IK GM55  BK GM55  PK GM55  MK GM55
 ’63-’79 Corvette  IK VET  BK VET  PK VET  MK VET
 ’97-’05 C5 Vette Getrag  BK VETGR
 7.25″ IFS  IK GM7.25  BK GM7.25  PK GM7.25  MK GM7.25
 7.5″ ’81 & Down  IK GM7.5  BK GM7.5  PK GM7.5  MK GM7.5
 7.5″ ’82 & Up  IK GM7.5B  BK GM7.5B  PK GM7.5B  MK GM7.5B
 7.6″ ’00 & Up Rear, H3 Front  IK GM7.6  BK GM7.6  PK GM7.6  MK GM7.6
 7.6″ Camaro V6  IK GM7.6  BK GM7.6  PK GM7.6  MK GM7.6
 7.75″ Borg Warner  IK GM7.75  BK GM7.75  PK GM7.75
 8″  IK GM8  BK GM8  PK GM8  MK GM8
 8″ GTO  IK GTO  BK GTO  PK GTO  MK GTO
 8.2″  IK GM8.2  BK GM8.2  PK GM8.2  MK GM8.2
 8.2″ BOP  IK BP8.2  BK BP8.2  PK BP8.2  MK BP8.2
 8.25″ IFS  IK GM8.25  BK GM8.25  PK GM8.25  MK GM8.25
 8.5″ Rear ’95 & Down  IK GM8.5  BK GM8.5  PK GM8.5  MK GM8.5
 8.5″ Front ’88 & Down  IK GM8.5F  BK GM8.5F  PK GM8.5F  MK GM8.5F
 8.5″ TrueTrac, Detroit, AG Pro ’95 & Down  IK GM8.5E  BK GM8.5E  PK GM8.5E  MK GM8.5E
 8.6″ LM501349 ’98-’99  IK GM8.6  BK GM8.6  PK GM8.6  MK GM8.6
 8.6″ ’96-’99 Eaton, AG Pro, Detroit, TT  IK GM8.6E  BK GM8.6E  PK GM8.6  MK GM8.6
 8.6″ ’99-’08 LM603049  IK GM8.6B  BK GM8.6B  PK GM8.6B  MK GM8.6B
 8.6″ ’09 & Up  IK GM8.6C  BK GM8.6C  PK GM8.6C  MK GM8.6C
 8.6″ Camaro V8  IK GM8.6CAM  BK GM8.6CAM  PK GM8.6CAM  MK GM8.6CAM
 8.75″ 12B R/G 10B Cover  IK GM8.75  BK GM8.75
 8.875″ 10B  IK GM8.875  BK GM8.875
 12 Bolt Passenger  IK GM12P  BK GM12P  PK GM12P  MK GM12P
 12 Bolt Truck  IK GM12T  BK GM12T  PK GM12T  MK GM12T
 9.25″ IFS  IK GM9.25  BK GM9.25  MK GM9.25
 9.5″ ’95 & Down  IK GM9.5  BK GM9.5  PK GM9.5  MK GM9.5
 9.5″ ’96 & Up  IK GM9.5B  BK GM9.5B  PK GM9.5B  MK GM9.5B
 10.5″ ’88 & Down  IK GM10.5  BK GM10.5  PK GM10.5   MK GM10.5
 10.5″ ’88-’95  IK GM10.5B  BK GM10.5B  PK GM10.5B  MK GM10.5B
 10.5″ ’96 & Up  IK GM10.5C  BK GM10.5C  PK GM10.5C  MK GM10.5C
 11.5″  IK GM11.5  BK A11.5  PK A11.5  MK A11.5
 HO72 w/o Load Bolt  IK GMHO72  BK GMHO72  PK GMHO72
 HO72 w/ Load Bolt  IK GMHO72B  BK GMHO72B  PK GMHO72B

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Differential Repair Kit ContentsSierra 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