Yukon Ring & Pinion replacement sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Reverse rotation in a 5.38 ratio with 35 spline pinion. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty. This ring & pinion set comes with pinion bearings, pinon seals & pinion shims.