Bearing Install Kit For GM HO72 Diff Without Load Bolt (Ball Bearing) HO72 GM W/O Load Bolt (Ball Bearing) Yukon Gear & AxleYukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. Yukon Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Master Overhaul Kit. This kit uses Timken bearings and races along with all high quality small parts. Yukon does extensive research for each application to make sure your kit