4 SPEED TRANSM SSION MUNC E AND NEW PROCESS 1971 72 TRUCK SPEEDOMETER GEAR CHART CONT 4 337 4 343 REAR GEAR GEAR 4 329 I 4 330 AXLE REAR TIRE SIZE SPEEDO SPEE DO ADAPTER SPEEDO RATIO DRIVEN DRI VE SPEEDO ADAPTER MUNCIE 4 SPEED 3 07 G7 8 x 15 G78 x 15 O R H78 x 15 H78 x 15 0 R 3866 799 3866742 3950348 3 07 E78 x 15 3866917 3866 742 3950348 3 07 7 00 x 15 O R 3866798 3866 742 3950348 I 3 07 6 50 x 16P 3866917 3866742 3950350 3 07 6 50 x 16T 6 50 x 6 O R 6 50 x 16P FI 7 00 x 15 3866799 3866742 3950350 3 07 E78 x 15 O R 3866798 3866742 3925673 3 53 G78 x 15 G78 x 15 O R H78 x 15 H78 x 15 O R 3866798 3866742 3 53 8 25 x 15 3866919 3866742 3950348 3 53 8 75 x 16 5 7 00 x 15 O R 3866799 3866742 3925673 3 53 6 50 x 16P 3866918 3866742 3950348 3 53 6 50 x 16T 7 00 x 15 10 0x16 5 10 x 16 5 0 R 3866919 38667 42 3950350 3 53 6 50 x 16T 0 R 6 50 x 16P 0 R 9 5 x 16 5 0 R 3866917 3866742 3950348 3 53 7 50 x 16 7 50 x 16 O R 3866799 3866742 3950348 3 53 7 00 x 16 9 50 x 16 5 3866798 3866742 3925673 3 53 7 00 x 16 O R 3866918 3866742 3950350 3 53 8 75 x 16 5 O R 3866798 3866742 3925671 1 3 72 G78x 15 G78x 15 4 V O R H78 x 15 H78 x I 15 O R 3866799 3866742 3 72 E78 x 15 E78 x 15 0 R 3866917 3866742 3 72 7 00 x 15 0 R 6 50 x 16T 7 00 x 15 6 50 x I 16P 0 R 6 50 x 16T I O R 3866798 3866742 3 72 6 50 x 16P 3866798 3866742 3950354 4 10 8 75 x 16 5 8 75 x 16 5 O R 10 x 16 5 R 3866917 3866742 4 10 6 50 x 16T 10 0 x 16 5 3866799 3866742 3950354 4 10 7 50 x 16 7 50 x 16 O R 3866798 3866742 4 10 7 00 x 16 9 50 x 16 5 7 00 x 16 O R 9 5 xr 16 5 0 R 3866799 3866742 4 10 8 00 x 19 5 3866917 3866742 3850348 j 4 10 8 x 19 5 O R 3866798 3866742 3925671 4 4 10 7 00 x 18 3866799 3866742 3925673 4 10 10 0 x 16 5 3866799 3866742 3950354 4 11 G78x15 G78x15 O R H78 x 15 H78 x 15 O R 3866918 3866742 4 11 E78 x 15 E78 x 15 O R 3866919 3866742 4 11 7 00 x 15 7 00 x 15 0 R 3866917 3866742 4 11 6 50 x 16P 3866794 3866663 3950348 4 11 6 50 x 16T 3866799 3866742 3950354 4 11 6 50 x 16P O R 6 50 x 16T O R 3866799 3866742 4 55 8 75 x 16 5 6 50 x 16T 8 75 x 16 5 0 R 10 0 x 16 5 10 x 16 5 O R 3866919 3866742 4 55 7 50 x 16 7 50 x 46 V 0 R 3866917 3866742 I 4 55 7 00 x 16 9 50 x 76 5 7 00 x 16 O R 9 5 x 16 5 O R 3866918 3866742 I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM REV 5 79 4 111 I 4 343 4 343