Pinion Bearing and install kit for the GM 8.5" REARS from 1971 to 1998. 1999- 2008  is DIFFERENT, 2009 and up is MORE DIFFERENT YET, please see our other kits for these. Top quality KOYO bearings, the same as AAM uses O.E, genuine O.E. crush sleeve with top quality Motive Gear nut, seal and gasket. This kit is PINION Parts Only, need more? please see our extensive line of kits to fit every need.  QUESTIONS? PLEASE CALL US, WE ARE HERE TO HELP, TOLL FREE 877-614-4327