USA Standard Master Overhaul Kit for 2010 Ford F-150 and 2010+ Ford Mustang 8.8in Differential
The USA Standard ZK F8.8-B is a complete master overhaul kit engineered for the Ford 8.8-inch differential as found in the 2010 Ford F-150 and 2010-and-later Ford Mustang. The ZK F8.8-B includes every bearing, seal, and hardware component required to rebuild the Ford 8.8in differential to factory specification, eliminating the need to source individual parts across multiple suppliers. This kit features premium Koyo and Timken bearings with matched races, high-quality pinion and axle seals, a pinion nut, crush sleeve, and shim assortment. USA Standard Gear conducted extensive application research when developing the ZK F8.8-B to ensure complete component coverage for this specific Ford 8.8in production variant. The ZK F8.8-B is backed by a lifetime limited warranty from Yukon Gear and Axle under the Magnuson-Moss Warranty Act.
What’s Included
- Inner and outer pinion bearings (Koyo/Timken) with races
- Carrier bearings with races
- Pinion seal
- Axle seals
- Pinion nut
- Crush sleeve
- Pinion shims
- Ring gear bolts
Features and Benefits
- Complete overhaul kit for 2010 F-150 and 2010+ Mustang 8.8in differential
- Premium Koyo/Timken bearings match OEM quality specifications
- All seals included for leak-free rebuild
- Eliminates multi-supplier parts sourcing
- Verified fitment for this specific 8.8in production variant
- Lifetime limited warranty under Magnuson-Moss Warranty Act
Specifications
| Specification | Detail |
|---|---|
| Part Number (MPN) | ZK F8.8-B |
| Differential Application | Ford 8.8in |
| Bearing Brand | Koyo / Timken |
| Fitment | 2010 Ford F-150, 2010+ Ford Mustang |
| Warranty | Lifetime limited |
| UPC | 883584299426 |
Frequently Asked Questions
- Does ZK F8.8-B fit both the F-150 and Mustang 8.8in differentials? Yes. Both the 2010 F-150 and 2010+ Mustang share the same 8.8in housing configuration covered by ZK F8.8-B.
- Is ZK F8.8-B compatible with a Torsen or Auburn limited-slip unit? Yes. The carrier bearings in ZK F8.8-B fit both open and limited-slip carrier assemblies for the Ford 8.8in.
- Does this kit include limited-slip additive? No. Use the appropriate Ford friction modifier separately when rebuilding limited-slip differentials.
- Can I use ZK F8.8-B for the pre-2010 Ford Mustang 8.8in? The ZK F8.8-B is specified for the 2010+ production variant. Earlier 8.8in applications may use a slightly different carrier bearing. Verify before ordering.
- Is professional installation required? Setting bearing preload and gear backlash requires specialized tools. Professional installation by a drivetrain shop is strongly recommended.
- Does ZK F8.8-B work with aftermarket gear sets? Yes. ZK F8.8-B is the appropriate overhaul kit to use alongside a ring and pinion installation in the Ford 8.8in.
- What is the warranty on ZK F8.8-B? Lifetime limited warranty from Yukon Gear and Axle under the Magnuson-Moss Warranty Act.
- Are synthetic differentials fluids compatible with ZK F8.8-B seals? Yes. The seals included in ZK F8.8-B are compatible with both petroleum and full-synthetic gear lubricants.
Installation Instructions
Drain the differential fluid. Remove the cover and carrier. Press out old bearings and install new ZK F8.8-B pinion and carrier bearings. Set pinion depth and carrier preload using the included shims. Adjust backlash to 0.008-0.012 inches. Verify gear contact pattern with marking compound. Install all new seals. Reinstall the cover with a new gasket and refill with the appropriate gear oil.








