Master Overhaul Kit for Ford 9.0" LM102910 differential. Includes 20 ring bolts and Solid Spacer. This kit uses Timken Bearings and Races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, solid spacer, oil baffles and slingers (if applicable), Thread locking compound, marking compound with brush, and gasket. Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application.