The Yukon 9.75-inch Ford rear ring-and-pinion install kit (3.55 ratio) supplies a Yukon ring and pinion with 2.99-inch outer-diameter axle bearings and seals to rebuild a 9.75" Ford rear axle. Sold as a Pro Kit, it includes a Yukon Master Install kit with Timken bearings and the small parts required to complete installation. Yukon advertises these kits to streamline re-gear jobs and supports gear sets with its Y.E.S. lifetime protection plan.
Yukon Gear 9.75in Ford 3.55 Rear Ring & Pinion Install Kit 2.99in OD Axle Bearings and Seals