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.
Fits AAM 11.5'' with 30 spline axles. Grizzly Lockers are a mechanical locking differential designed for off-road and racing use. Patented design reduces common locker failures.