Yukon Ring and Pinion 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 and pinion sets deliver unrivaled performance and quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up.Fits standard rotation Dana Spicer 448.50″ ring gear diameter26 spline pinion10 ring gear bolts5.38 ratioFits:Jeep Wrangler JK 2 Door (2007-2018)Jeep Wrangler JK 4 Door Unlimited (2007-2018)