Yukon Gear & Axle Toyota ring and pinion Re-Gear Kits save you time by bundling everything you need to upgrade your front and rear differentials in one simple part number. Kits feature premium Yukon ring and pinion gear sets, Master Install Kits with high-quality Timken/Koyo bearings, and all required small parts to get your vehicle back on the road fast so you can make the most of your time in the dirt or on your commute.