I I I 4 SPEED TRANSMISSION I 1968 LIGHT DUTY TRUCKS SPEEDOMETER GEAR CHART A I 4 343 4 337 I I Q R AR I GEAR GEAR 4 329 4 338 A I A I A5E LE TIRE SIZE AND TYPE A SPEEDO SPEEDO ADAPTER FFIQTING 5 RATIO I DRIVE IDRIVEN SPEEDO A SY I I I TRANSFER CASE 4NVD I I I f 3 73 7 75 x 15 8 15 x 15 0 R A A 2397307 I A 2396889 I 3 73 8 15 x 15 exc 0 R I 2397307 3925669 2396889 A 3 73 7 00 x 15 6 50 x 16 8 00 x 16 5 7 00 x 17 5 2397307 3925671 2396889 I 4 57 7 00Ix 16 0 R 7 50 x 16 9 50 x 16 5 A A 2396888 I 8 00 17 5 2397307 1 4 57 7 00 x 17 5 8 75 x 16 5 2397307 I 3925669 2396888 I 4 57 7 00 x 17 exc 0 R 2397307 Q 3925671 2396888 4 57 7 00 x 17 0 R 7 50 x 17 8 00 x 19 5 I 2397307 I 2396889 I A 4 57 8 00 x 16 5 7 00 x 17 5 0 R 2397307 A 2396890 A 4 57 7 00 x 16 8 00 x 17 5 2397307 3925671 2396890 I I4 I I I I 4 SPEED TRANSMISSION WARNER A I I I I A A 4 3 3 36 6 95 X 14 3708145 3860345 I I I I 3 36 7 00 X 14 0 R I I 3708145 3860346 1565813 I I A 3 36 7 00 x 14 Iexc O R 7 35 x 14 3708145 3860347 1565813 I I 3 73 7 II X 14 exc 0 R I I 3708145 3860345 1565814 3 73 7 75 X A15 AA I 37081454 3860345 I I 3 73 7 00 X 14 0 R 7 35 X 14 0 R 8 l5 x 15 A 3708145 3860346 I 3 73 6 95 X 14 7 35 X 14 exc 0 R I 3708145 A 3860347 I 3 73 8 00 X 16 5 3708145 I 3860347 1565814 4 11 7 IX1 X 14 8 15 X 15 3708145 3860347 1565814 I 4 11 7 75 X 15 8 00 X 16 5 A 3708145 I 3860347 I A I 4 11 6 95 X 14 7 35 X l4A exc 0 R I 3708145 3860348 1565814 I 4 11 7 35 X 14 0 R 7 00 X 14 O R A 3708145 I 3860348 A A 4 SPEEDTRANSMISSION MUNCIE I A I I I A A A I 3 07 7 75 X 15 I 3866742 3866798 1565813 3 07 7 00 X 15 6 50 X 16 7 00 X 17 5 I 3866742 3866798 1563967 I 3 07 8 15 X 15 exc O R I AI 3866742 3866799 I 1565813 3 07 8 15 x 15 0 R 6 50 x 16 8 00 x 16 5 A 3866742 3866799 1589247 I 3 73 7 00 X 15 6 50 X 16 7 00 X 17 5 38667 2 A A 3 73 7 75 X 15 8 15 X 15 0 R 8 00 X 16 5 38667 2I A A I 3 73 8 15 X 15 exc 0 R I 3866742 3866799 1565814 L 3 73 6 50 X 16 exc 0 R I 3866742 3866918 1565813 I 4 10 7 fX X 17 1 I 3866742 3866798 I A A 4 10 7 00 16 9 50 X 16 5 8 00 X 17 5 3866742 3866799 I I I 4 10 6 50 16 8 75 x 16 5 7 X1 X 17 5 3866742 3866917 I 4 10 7 00 X 18 3866742 3866917 1565813 I Mg I 7 5g I6 1 3866742 3866918 1565813 A X I 3866742 I 3866918 1565812 6 4 10 10 00 X 16 5 I 4 10 7 50 X 17 8 00 X 19 5 3866742 3866918 1589247 I 4 10 8 IX X 16 5 I I I 3866742 3866918 A 4 10 7 50 X 17 8 00 X 19 5 3866742 I 3866918 1565452 OI A I 4 10 7 50 x 16 3866742 3866918 1584278 4 10 7 50 X 17 0 R 8 00 X 19 5 O R I I 3866742 3866919 6451928 I A 4 10 7 00 X 18 3866742 3866917 1584278 A 4 11 8 15 X 15 EXC 0 R 3866742 3866798 1583624 A I 4 11 6 50 X 16 0 R 3866742 A 3866799 4 11 6 50 X 16 exc 0 R I 3866742 I 3866799 1565814 A I 4 11 X 15 6 50 X 16 7 00 X 17 5 3866742 3866917 A T I 4 11 7 75 X 15 8 15 X 15 0 R 8 00 X 16 5 3866742 3866918 I I 4 57 7 00 X 16 1 3866742 3866798 I 1583624 I I J 4 57 7 50 X 17 0 R 8 00 X 19 5 0 R I A 3866742 3866799 AAA I I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL 4 337 4 337 j A I I4 60 I A A REV 5 79