The Yukon ZF 9.25-inch Chrysler rear ring-and-pinion install kit (3.91 ratio) supplies a Yukon ring and pinion with axle bearings and seals to service a 9.25" Chrysler ZF rear axle. The Pro Kit format includes a Yukon Master Install kit with Timken bearings and the necessary small parts to complete a re-gear, and many Positraction units in the lineup are rebuildable. Yukon also offers the Y.E.S. lifetime protection plan for gear set owners.
Yukon Gear ZF 9.25in CHY 3.91 Rear Ring & Pinion Install Kit Positraction Axle Bearings and Seals