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.

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.