For use with Ford Axles

Differential Repair, Rebuild and Installation Kits for Ford 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 chart.

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

 Ford 7.5″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 7.5″  IK F7.5  BK F7.5  PK F7.5  MK F7.5
 Ford 8″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 8″  IK F8  BK F8  PK F8  MK F8
 8″ w/aftermarket Posi  IK F8P  BK F8P  PK F8  MK F8
 Ford 8.8″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 8.8″  IK F8.8  BK F8.8  PK F8.8  MK F8.8
 8.8″ Ford ’15 & Up  IK F8.8C  BK F8.8C
 Ford 9″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 9″ ’70 & Up LM102910  IK F9  BK F9  PK F9  MK F9
 9″ ’69 & Down 28 Spline LM501310  IK F9B  BK F9B  PK F9  MK F9
 9″ ’69 & Down 31 Spline LM603011  IK F9C  BK F9C  PK F9  MK F9
 9″ 31 Spline Big Pinion  IK F9BRC  BK F9BRC
 9″ 35 Spline Big Pinion  IK F9BRD  BK F9BRD
 9″ Daytona LM102910  IK F9HDA  BK F9HDA  PK F9HD  MK F9
 9″ Daytona LM501310  IK F9HDB  BK F9HDB  PK F9HD  MK F9
 9″ Daytona LM603011  IK F9HDC  BK F9HDC  PK F9HD  MK F9
 9″ Daytona LM104911  IK F9HDD  BK F9HDD  PK F9HD  MK F9
 9″ 31 Spline – Small>Big Pinion LM102910  IK F9RA  BK F9RA
 9″ 31 Spline – Small>Big Pinion LM603011  IK F9RC  BK F9RC
 9″ 35 Spline – Small>Big Pinion LM104911  IK F9RD  BK F9RD
 Ford 9.75″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 9.75″  IK F9.75  BK F9.75  PK F9.75  MK F9.75
 9.75″ ’99-’06  IK F9.75B  BK F9.75B  PK F9.75B  MK F9.75B
 9.75″ ’07-’09  IK F9.75C  BK F9.75C  PK F9.75C  MK F9.75B
 9.75″ ’10 & Up w/OEM R&P  IK F9.75D  BK F9.75D  PK F9.75D  MK F9.75D
 9.75″ ’10 & Up w/Aftermarket R&P  IK F9.75E  BK F9.75E  PK F9.75E  MK F9.75E
 9.75″ ’11 – ’14 w/OEM R&P  IK F9.75F  BK F9.75F
 9.75″ ’15 & Up  BK F9.75G
 Ford 10.25″ & 10.5″  Master Kit  Bearing Kit  Pinion Kit  Mini Kit
 10.25″  IK F10.25  BK F10.25  PK F10.25  MK F10.25
 10.5″ ’99-’06  IK F10.5  BK F10.5  PK F10.5  MK F10.5
 10.5″ ’07-’10  IK F10.5B  BK F10.5B  PK F10.5B  MK F10.5B
 10.5″ ’11 & Up w/ OEM R&P  IK F10.5C  BK F10.5C  PK F10.5C  MK F10.5C

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.