3 I I 4 SPEED TRANSMISSION I A 1971 TRUCK SPEEDOMETER GEAR CHART CONT I I I 4 337 4 338 I Gar G r 4 329 I R r Sp d m t r Spndomitor Ad pt r V I AxI Ratio R r Tin Sin DrIv n DrIv Sp d m t r NEW PROCESS 4 SPEED CONT A v I l 5 43 6 50x 16P O R 375 13 2480048 50352 5 43 6 50 x 16T 6 50 x 16T 0 R 7 00 x 15 V 10 0 x 16 5 10 x 16 50 6 375 17 2480048 25669 4 5 431 7 00 x 16 3 7 17 2480048 50354 5 43 7 00 x 160 R 7 50 x 160 R 9 50 x 16 5 9 5x 16 50 R 375 17 2480048 5 43 7 50x16 375 11 2480048 W497 I 5 43 8 00 x 19 5 375 13 2480048 25669 5 43 8 x 19 50 R 7 00 x 18 375 15 2480048 6 17 8 00 x 16 5 G78 x 150 R 8 x 16 50 R V 6 50 x 16P H78 x 150 R 375 17 248I D48 05497 6 17 8 75 x 16 5 6 75 x 16 50 R 6 50 x 16P O R 6 50 x 16T 6 50 x 18T O R 7 00 x 15 I 7 00 x 1 50 R 10 0 x 16 5 10 x 16 50 R 375 17 2480048 50352 V 6 17 7 00 x 16 9 50 x 16 5 9 5 x 16 50 R 375 15 I 2480048 05497 6 17 7 00x 160 R 7 50 x1 6 7 50 x1 60 R Q 375 15 2480048 50352 I 6 17 8 00 x 19 5 375 17 2480048 50354 V 6 17 8x 19 50 R 375 17 2480048 25669 6 17 7 00 x 18 I 37 56913 2480048 50352 6 I DANA TRANSFER CASE I I 4 I 3 07 8 x 16 5 8 75 x 16 50 R 6 50 x 16P 7 00 x 150 R 3968031 64593 50350 g g 3 07 E78 x 15 F78 x 14 7 00 x 14 7 00 x 140 R 68031 64593 60348 3 07 C78 x14 C78 x 140 R A 68032 64593 50348 3 07 G78 x 150 R 8 x 16 50 R H78 x 15 H78 x 150 R Q 68030 64593 50348 3 r 3 07 E78 x 150 R F78 x 140 R 68032 64593 50350 3 07 6 50 x 16P O R 6 50 x 16T O R 7 00 x 16 I 7 00 x 160 R 9 5 x 16 50 R 10 x 16 50 R 68030 64593 50350 3 36 G78 x 15 G78 x 150 R 8 x 16 50 R H78 x 150 R 68032 64593 50348 3 36 8 00 x 16 5 6 50 x 16P 68030 64593 25673 3 36 E78 x 15 E78 x 150 R 7 00 x 14 I 68031 64593 25673 3 36 C78 x 14 I 68030 64593 50354 A 3 36 8 75 x 16 5 6 50 x 16P O R 6 50 x 16T 5 Q 6 50 x 16T 0 R 7 00 x 15 7 00 x 150 R I 4 Q 10 0 x 16 5 10 x 16 50 R 68032 64593 50350 I V 3 36 C78 x 140 R 7 00 x 140 R 68030 645933 3 36 F78x140 R 68030 64593 25671 l 3 36 8 75 x 16 50 R V 68031 64593 50348 3 36 7 00 x 16 9 50 x 16 5 9 5 x 16 50 R 68030 64593 50348 3 36 7 00 x 160 R 7 50 x 160 R I 68031 64593 50350 3 36 8 x19 50 R 68030 64593 49503505 3 54 8 00 x 16 5 v 66030 64593 25671 3 54 E78 x 15 F78 x 14 68030 64593 50354 3 54 C78 x 14 C78 x 140 R 68032 64593 3 54 8 75 x 16 5 6 50 x 16P O R 6 50 x 16T Y r 6 50 x 16T O R 7 00 x 15 7 00 x 150 R 10 0 x 16 5 10x 16 50 R I 68030 64593 3925673 3 54 G78 x 150 R 8 x 16 50 R E78 x 150 R F78 x 150 R H78 x 150 R 7 00 x 14 V 7 00x 140 R 3968030 64593 I 3 54 8 75 x 16 50 R 6 50 x 16P 68032 64593 50348 3 54 H78 x 15 68031 64593 25673 3 54 7 00 x 16 9 5 x 16 50 R 68031 64593 50348 3 54 7 00 x 160 R 9 50 x 16 5 68032 64593 50350 3 54 7 50 x 16 7 50 x 160 R I 68030 64593 50348 3 54 8 00 x 19 5 3968030 64593 50350 3 54 8 x 19 50 R 68031 64593 50350 3 70 G78 x 15 68030 64593 50354 3 70 8 00 x 16 5 G78 x 150 R 8 x 16 50 R 6 50x16P I I78x15 V V H78x150 R L 3988030 64593 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL I 4 337 4 337 4 82 I I REV 5 79