The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.
4.10 and down ratio only
8620 internals for added strength
Assembled in the USA
Fits Dana Spicer 60 with 40 spline axles
Patented internal design reduces common locker failures
Technical Notes: This locker is not compatible with c-clip axles.