Description
A worn differential is the silent killer of rear-end performance—it compromises handling, increases wear on drivetrain components, and can strand you mid-race. This master overhaul kit gives you everything needed to restore your GM 12-bolt to factory specifications or prepare it for upgraded power, eliminating guesswork and ensuring proper bearing preload and gear mesh. Whether you’re rebuilding after thousands of track miles or fortifying a freshly tuned engine, a complete refresh with quality components is the only way to guarantee reliability.
- Fits: GM 12-bolt differentials
- Kit type: Master overhaul
- Includes: Bearings
- Includes: Crush sleeve
- Includes: Gaskets
- Includes: Hardware
- Includes: Seals
- Includes: Shims
- Application: Rear differential
- Installation: Professional recommended
- MPN: YK GM12P







