Check the listing for details. GM 8.5" Pinion Setup Bearings Koyo. Condition: New. Listed at 85.00 USD. GM 8.5" Pinion Setup Bearings Koyo Application: GM 8.5" Description: Setup bearings have the inside diameter machined to be a slip fit to help with setting up ring and pinions. The slip fit allows for bearings to be installed and removed quickly to adjust pinion shims. These bearings are for setup only and are not able to be used as actual bearings. Includes: Includes inner and outer Koyo pinion bearings that have been opened up for setup up a differential Does not include races Notes: Outer pinion bearing M88048 Inner pinion bearing M802048 Looking for something else? All Setup Bearings GM 8.5" Bearings, Seals, Hardware GM 8.5" Gear and Install Kits GM 8.5" Posi, Gear, Bearing Kit Packages GM 8.5" Posi-units and Differentials GM 8.5" Ring and Pinions All GM 8.5" Parts Check out our eBay store!