Put more power to ground with a Yukon Grizzly locker differential. Yukon manufactures this differential with a forged case and 862 steel internals for added strength. This differential is designed for heavy duty, off-road, and high performance use. The patented internal design reduces locker failure and withstands shock load and heavy abuse. If your vehicle has big tires and big power, then a Yukon Grizzly locker differential is the perfect upgrade for your vehicle. When you hit the gas and are headed in a straight line the differential locks and puts 100% power to both sides of the axle. When you turn the unit will disengage, when you return to a straight line the unit will then lock back into place. | Yukon Grizzly Locker Differential YGLGM11.5-38