TURBO HYDRAMATlC T H 350 4 337 4 343 Rear Gear Gear 4 329 Axle Rear Tire Size Speedo Speedo Adapter Year Ratio Driven Drive Speedo 71 2 563 E78 14 F78 14 3987920 6261785 71 2 733 E78 14 F60 15 3987922 6261785 72 2 733 E78 14 F60 15 3987922 6261785 72 2 733 F78 14 3987921 6261785 71 2 733 F78 14 3987921 6261785 73 5 2 723 G70 14 G78 14 3987921 6261785 73 5 2 713 H78 14 3987920 6261785 3950354 71 3 071 E78 14 F78 14 3987920 6261785 3950352 71 3 07 7 E78 14 F78 14 3987920 6261785 3950352 71 3 083 E78 14 F78 14 3987920 6261785 3950352 72 3 033 E78 14 F60 15 F78 14 3987920 6261785 73 3 08 G70 14 G78 14 13987921 6261785 6273218 73 3 08 G78 14 3987921 6261782 3950354 73 3 08 H78 14 23987919 6261785 3950352 71 3 308 E78 14 F60 15 3987922 6261785 3950352 71 3 308 F78 14 23987921 6261785 3950352 72 3 31 E78 14 F60 15 33987922 6261785 72 3 31 F78 14 23987921 6261785 71 3 364 E78 14 F78 14 3987922 6261785 3950352 71 3 417 E78 14 F78 14 13987922 6261785 3950352 73 5 3 42 G70 14 G78 14 23987922 6261785 3950352 73 5 3 42 H78 14 3987919 6261782 3950352 73 5 3 42 H78 14 3987919 6261785 3932220 1976 7 SPRINT w T H 350 Code Driven Gear Teeth Color Sleeve Asm I Code Adapter A 3987918 18 Brown 345215 1 F 3950354 EI 3987919 19 Natural 345215 G 62732 8 C 3987920 20 Blue 345215 D 3987921 21 Red 345215 EE 3987922 22 Silver 345215 j GM PARTS DIVISION GENERAL MOTORS CORPORATION SPRINT 57 T REV 4 81 4 29 4 337 4 337