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 GM 8.5'' and 8.6'' with 30 spline axles, 2.73 and up ratios. Grizzly Lockers are a mechanical locking differential designed for off-road and racing use. Patented design reduces common locker failures.