I 4 SPEED TRANSMISSION 6 A A 1971 TRUCK SPEEDOMETER GEAR CHART CONT K A 4 337 4 338 1 I Gear Gear 4 329 Rear Speedometer Speedometer Adapter A Axle Ratio Reer Tire Size Driven Drive Speederneter 1 MUNCIE 4 SPEED CONT V A 4 57 C78 x 14 C78 x 140 R 3866795 3866663 4 57 8 75 x 16 5 8 75 x 16 50 R 6 50 x 16P O R 6 50 x 16T 6 50 x 16T O R I A 4 7 00 x 15 7 00 x 150 R 10 0 x 16 5 4 10 x 16 50 R V 3866919 3866742 4 57 7 00 x 16 7 00 x 160 FI 9 50 x 16 5 9 5 x 16 50 B 3866918 3866742 4 57 7 50 x 16 7 50 x 160 R 3866917 3866742 4 57 8 00 x 19 5 8 x 19 50 R 7 00 x 18 3866799 A 3866742 5 14 G78 x 15 G78 x 150 R 8 x 16 50 R E78 x 150 R F78 x 140 8 A A HA78 x 150 R A 3866796 3866663 1 5 14 8 00 x 16 5 6 50 x 16T A A 3866795 A 3866663 5 I 5 14 E78 x 15 F78 x 14 C78 x 140 R 7 00 x 140 R 3866797 3866663 I 5 14 C78 x 14 38 66793 3866663 3905497 I 5 14 8 75 x 16 5 8 75 x 16 50 R 6 50 x 16P O R A 6 50 x 16T 6 50 x 16T O R 7 00 x 15 A I 7 00 x 150 R 9 5 x 16 50 R A A 10 0 x 16 5 10 x 16 50 R A 3866794 3866663 5 14 I H78 x 15 J 3866918 3866742 3905497 5 14 7 00 x 16 3866799 3836742 3905497 A 5 14 7 00 x 160 R 7 50 x 160 R 9 50 x 16 5 3866793 3966663 A 1 A 5 1 4 7 50 x 16 e 3866919 3866742 3950354 A I 5 14 7 00 x 14 A A 3866919 3866742 3905497 5 14 8 00 x 19 5 3866918 3866742 AA I 5 14 8 x 19 50 R Q 3866919 3866742 I A 5 14 7 00 x 18 Z 3866795 3866663 3950348 5 43 AG78 x 15 G78 x 150 R 8 x 16 50 R E78 x 150 R F78 x 140 R H78 x A15 V H78 x 150 R 3866797 3866663 1 5 43 8 00 x 16 5 8 75 x 16 50 R 6 50 x 16P 7 00 x 150 R 3866796 3866663 5 43 A E78 x 15 F78 x 14 7 00 x 140 R 3866793 3866663 3905497 5 43 C78 x 14 C78 x 140 R 3866794 3866663 3905497 5 43 8 75 x 16 5 A 3866918 3866742 A 3905497 A 5 43 6 50 x 16P O R 6 50 x 16T 6 50 Vx 16T O R A 1 A 7 00 x 15 9 5 x 16 50 R 10 0 x 16 5 10 x 16 50 R 3866795 3866663 A 5 43 7 00 x 1 6 3866794 3866663 3950354 5 43 A 7 00 x 160 R 7 50 x 160 R 9 50 x 16 5 3866794 A 3866663 A 5 43 7 50x16 L A 3866793 3866663 3950354 1 5 43 7 00 x 14 3866797 3866663 3950354 5 43 8 00 x 19 5 3866919 3866742 5 43 8 x 19 50 R A A 3866793 3866663 5 43 7 00x 18 L 3866919 3866742 3950354 6 17 G78 x 15 3866795 3866663 3965497 A 6 17 8 00 x 16 5 6 50 x 16P 3866794 3866663 3905497 6 17 E78 x 15 F78 x 14 3866796 3866663 3905497 6 17 C78 x 14 C78 x 140 R 3866797 386 6663 3905497 A 6 17 8 75 x 16 5 8 75 x 16 50 R 7 00 x 150 R Q 3866794 3866663 V A 3950352 6 17 G78 x 15 8 x 16 50 R H78Ax 15 S H78 x 150 R 1 3866795 3866663 3950352 I 6 17 E78 x 150 R F78 x 140 R 7 00 x 14 7 00 x 140 R 3866796 3866663 3950352 I 6 17 6 50 x 16P O R 6 50 x 16T 6 50 x 16T O R A 10 x 16 50 R 3866793 3866663 3950352 I 6 17 7 00 x 15 10 0 x 16 5 3866797 3866663 3925669 A 6 17 7 00 x 16 3866796 3866663 3925669 A 6 17 7 00 x 160 R 9 50 x 16 5 9 5Ax 16 50 R 3866797 3866663 1 6 17 7 50 x 16 7 50 x 160 R A 38667 96 3866663 6 17 8 00 x 19 5 3866797 3866663 3925673 A 6 17 8 x 19 50 R 7 00 x 18 3866795 3866663 A GM PARTS DIVISION GENERAL MOTORSCORPORATION CHEVROLET 72TL REV 5 79 I I A 4 75 4 337 4 337