Find the Pinion & Slip Yokes you need to get your 1999-2003 Ford 7.3L Powerstroke back on the road. Whether you need pinion seals, bearings, shim kits, or flanges, you'll find what you're looking for. While pinion yokes aren't a common failure item, damage from broken shafts or u-joints, abuse from things like burnouts and racing, and less-than-ideal driveshaft angles can cause them to fail or break. There are high-quality brands such as Dorman and Nitro Gear & Axle available.