Conversion kit that allows you to use your late 1972-1/2-on intermediate housing with a modified GB 662 3.78 mainshaft. The kit consists of the following: VWA020-311-123B Adapter bearing VW 020-311-187 Early mainshaft circlip VWB080-311-1511 Thrust washer VWB113-311-309 3/4 slider keyed hub VW 113-311-191 Mainshaft spring washer Conversion kit that allows you to use your late 1972-1/2-on intermediate housing with any GB 663 mainshaft with the threaded end. The kit consists of the following: VWA020-311-123B Adapter bearing VWB 080-309-3851 Early mainshaft nut VWB080-311-1511 Thrust washer VWB113-311-309 3/4 slider keyed hub VW 113-309-381 Lock plate Note: See GB 667 super strength keys |