I I TURBO HYDRAMATIC TRANSMISSION A 1971 TRUCK SPEEDOIVIETER GEAR CHART CONT I 4 337 4 338 g Gear Gear 4 329 Rear Speedometer Spaedometer Adapter Axle Ratio Rear Tire Size Driven Drive Speadometer 3 A NEW PROCESS TRANSFER CASE CONT 4 57 G78 x 150 R 8 x 16 50 R H78 x 15 I H78 x 150 R l 3866919 3964594 3925669 i 4 57 C78 x 140 R 3866918 3964594 3950352 4 57 7 00 x 16 7 00 x 160 R 9 50 x 16 5 9 5 x 16 50 R 3866918 3964594 I 4 57 7 50 x 16 7 50 x 160 R 3866917 3964594 i 4 57 8 00 x 19 5 8 x 19 50 R 7 00 x 18 3866799 3964594 5 14 G78 x 15 F78 x 140 R 3866919 3964594 3950352 I 5 14 8 00 x 16 5 6 50 x 16P 3866918 3964594 3950352 V 5 14 E78 x 15 F78 x 14 E78 x 150 R 7 00 x 14 7 00 x 140 R 3866919 3964594 3905497 5 14 r 8 75 x 16 5 8 75x 16 50 R 7 00 x 150 R 3866917 3964594 3905497 i 5 14 G78 x 150 R 8 x 16 50 R H78 x 15 H78 x150 R 3866918 I 3964594 3905497 5 14 6 50 x 16P O R 6 50 x 16T 6 50 x 16T 0 R 7 00 x 15 10 0 x 16 5 10 x 16 50 R 3866917 I 3964594 3950352 5 14 7 00 x 16 9 50 x 16 5 9 5 x 16 50 R 4 3866799 3964594 3905497 5 14 7 00 x 160 R 3866919 3964594 3925669 5 14 7 50 x 16 3866919 3964594 3950354 5 14 7 50 x 160 R 3866799 3964594 3950352 5 14 8 00 x 19 5 V 3866918 3964594 5 14 8 x 19 50 R A 3866919 3964594 5 14 7 00 x 18 3866918 3964594 3950354 6 17 7 00 x 160 R 7 50 x 16 7 50 x 160 R 3866919 3964594 3905497 6 17 8 00x 19 5 3866917 3964594 3905497 I 6 17 8 x 19 50 R 7 00 x 18 3866918 3964594 g 3950352 I I 1972 SPEEDO CHARTS h L I I For 1972 Speedo gear application refer to chart Locate rear axle ratio and corresponding tire size Refer to code chart with proper code letter for part number of driven gear adapter sIeeve or key where applicable l TH 350 EXC 307 RATIO V CODE DRIVEN GEARS SLEEVE ASSY CODE ADAPTERS CODE ADAPTERS l A 3860345 22T 6256100 3925671 J 3905497 B 3860346 23T 6258100 3925673 K 3925669 r C 3860347 24T 6258100 3950348 L 3950352 D 3860348 25T 6258100 3950350 M 3950354 i GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL REV 5 79 4 171 4 337 4 337