Compatible With: GM 5 speed Getrag 290 2nd design transmission rebuild kit is a complete rebuild kit with synchro rings. You can identify this transmission by the aluminum rear loaded case. This kit is for the "2nd design" Getrag 290 transmission. The transmission uses a wide 1.3 inch Input and Output Bearings and Countershaft Bearings that are .090 inch Inside Diameter. This transmission rebuild kit includes the bearings, synchro rings, seals, and gaskets.