Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential thats engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100 percent power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350 percent greater strength versus back-cut designs. The Grizzly Lockers larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. Its a serious piece of mechanical engineering for serious driving conditions. The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100 percent power to both tires, while still allowing for disengagement while negotiating turns.

Features:
Fits Ford 8 inch with 31 spline axles Patented internal design reduces common locker failures 8620 internals for added strength Assembled in the USA Details: AAP Selling Package Quantity UOM: EA Aap uda 12: EA Aap uda 22: 1 Axle Shaft Spline Quantity: 31 Cover Bolt Quantity: 0 Material: Steel Type: Locking This unit uses carrier bearing and race part numbers Lm102949 & Lm102910.

Fitment Notes:
Ford 8 inch. Rear Yukon Grizzly Locker 31 Spline 1.78 inch. Bearing Journals