SPACER ADAPTER TH350 REPLACING A 700R 1.875

The stock GM 700R is 1.875″ longer than the TH350 transmission. This adapter spacer when used with a 6″ tailhousing 2WD TH350 (15.5″ O.A.L. output shaft length) should provide a direct replacement for the 700R transmission. The TH350 output shaft will require some trimming; however, this will allow you to install theTH350 without any driveshaft modifications.

Bill Of Materials

• SPACER- 700R4 4WD OUTPUT 1-7/8 / 51-8505
• GM AUTO TRANSMISSION O RING / 716511
• NUT 3/8 -16 PLATED GRD 5 / 723701
• LOCK WASHER 3/8 ZINC / 723704
• STUD BOLT 3/8 -16 X 4 / 723716