Zip Air Locker, 3.73 and Numerically Lower Gear Ratio

The Yukon Gear & Axle Zip Locker gives Jeep owners 100% control of their traction. With the flip of a switch you can convert from a standard open differential suitable for daily driving to fully locked when heading off-road. All without having to leave the driver seat. An on-board air system or compressor is required to operate, Yukon supplies all of the fittings and hardware needed to adapt to most air supplies. Yukon assembles their lockers in the USA using a forged case and alloy internal components for added strength and durability against the demanding conditions that Jeeps endure.