Yukon Gear Grizzly Locker For Ford 9in w/ 28 Spline Axles

The Yukon Grizzly Locker features a patented internal design with inner clutch teeth that have a larger radius at the base. This design offers up to 350% greater strength compared to back-cut designs, significantly reducing common locker failures and making it a robust choice for demanding applications. It’s built with 8620 internals for added strength and is assembled in the USA.

This mechanical positive-locking differential is engineered to provide 100% power to both tires, which is crucial for serious off-road driving like rock crawling, trail running, and even drag racing. Despite locking both axles, the Grizzly Locker still allows for disengagement when negotiating turns, maintaining drivability on the street. Its larger teeth are designed to resist breakage from shock-loading or catastrophic axle failure, ensuring reliability when you need it most.

This locker is designed to fit Ford 9-inch axles with 28 spline axles and a 1.78-inch bearing journal. It's a solid option for a wide range of classic Ford vehicles, including models like the Ford Bronco (1966-1986), Ford F-100 (1957-1976), and Ford Mustang (1965-1973), among many others. Installation will require opening the differential housing and setting backlash and gear pattern, so refer to the manufacturer's instructions for detailed procedures.