Yukon Grizzly Lockers are high performing mechanical locking differentials crafted from the exceptionally strong metals. These units are able to provide 100% power to both tires, while allowing for disengagement to navigate corners in the road and bends on the trail. Assembled and quality tested in the USA, the Grizzly Locker is trusted in off-road and drag competitions around the world. This locker is not compatible with c-clip axles