I I 3 SPEED TRANSMISSION I A V I 1968 LIGHT DUTY TRUCKS SPEEDOMETER GEAR CHART I VV NOTE To ord r Spcodomater G ars Parts or Units Transmission TVN Roai Axle Ratio ang Tire Siza must b known A 0 R indicates Off Road Tins Component part serviced for 1968 A A 4 343 4 337 4 329 14 338 REAR GEAR GEAR AXLE A SPEEDO SPEEDO ADAPTER FITTING RATIO V TIRE SIZE AND TYPE DRIVE DRIVEN SPEEDO ASSY V 3 SPEED TRANSMISSION exc O D H D A 3 07 8 15 x 15 V N 6261794 3987919 5 V 3 07 6 50 x 16 O R A 6261794 3987919 1565813 V 3 07 V 7 75x 15 8 15 x 15 O R 6261794 3987918 3 07 7 00 x 15 6 50 x 16 7 00 x 17 5 6261794 3987918 1565812 A 3 07 6 50 x 16 O R 6261794 3987920 1589247 3 07 8 00 x 16 5 6261794 3987920 1565813 A 3 07 6 50 x 16 6261794 3987921 1589247 A 3 36 6 95 x 14 6261795 3860345 A 3 36 7 35 x 14 V 6261794 3987920 1565814 3 36 6 95 x 14 0 R 7 00 x 14 7 35 x 14 O R 6261794 3987921 3 73 V 7 00 x 14 0 R 7 35 x 14 0 R 8 15 x 15 6261795 3860346 I 3 73 7 00 x 14 7 75 x 15 8 15 x 15 0 R 6261795 3860345 I 3 73 6 95 x 14 7 35 x 14 I 6261794 3860347 A 3 73 8 00 x 16 5 6261794 3860347 1565813 3 73 8 00 x 16 5 6261794 3987918 1583624 3 73 6 50 x 16 OLR 7 00 x 17 5 O R 6261794 3987920 3 73 7 00 x 15 6 50 x 16 7 00 x 17 5 A 6261794 3987921 V V 4 10 7 00 x 17 5 8 75 x 16 5 6 50 x 16 6261795 3860346 4 10 8 00 x 16 5 6261795 3860347 4 10 7 00 x 17 6261795 3860348 1589247 4 10 7 00 x 16 9 50 x 16 5 8 00 x 17 5 6261795 3860345 4 10 7 50 x 16 I 6261794 3987921 4 10 10 00 x 16 5 6261794 3987921 1565814 4 10 7 00 x 17 7 50 x 17 8 00 x 19 5 6261794 3987920 4 11 6 95 x 14 7 35 x 14 6261795 3860348 1565814 4 11 7 00 x 14 0 R 7 35 x 14 O R 6261795 3860348 4 11 7 00 x 14 exc O R 8 15 x 15 exc O R I 6261795 3860347 1565814 I 4 11 7 75 x 15 8 00 x 16 5 8 15 x 15 0 R 6261795 3860347 4 11 7 00 x 15 6 50 x 16 exc O R 7 00 x 17 5 6261795 3860346 V I V 4 11 6 50x 16 O R 6261795 3860345 4 57 8 00 x 16 5 6261794 V 3987921 1583624 4 57 7 50 x 17 8 00 x 19 5 6261795 3860345 4 57 7 00 x 17 6261795 3860346 4 57 7 00 x 16 8 00 x 17 5 exc O R V 6261795 3860346 1565814 I I 4 57 7 50 x 16 9 50 x 16 5 6261795 3860347 4 57 8 75 x 16 5 6261795 3860347 1565814 4 57 7 00 x 17 5 8 00 x 17 5 O R 10 00 x 16 5 l V I 7 00Vx 16 O R l 6261795 3860348 I 3 SPEED TRANSMISSION w O D i c 4 11 6 50 x 16 0 R 3886328 3860345 i 4 11 7 00 x 15 6 50 x 16 exc O R 7 00 x 17 5 3886328 3860346 4 11 7 75 x 15 8 15 x 15 O R 8 00 x 16 5 3886328 3860347 4 11 8 15 x 15 exc 0 R 1 W 3886328 3860347 1565814 1 H D 3 SPEED TRANSMISSION 396 1 A V I 3 07 7 75 x 15 8 15 x 15 O R 3708144 3987918 A 3 07 7 00 x 15 6 50 x 16 exc O R 7 00 x 17 5 l 3708144 V 3987918 1565812 r 3 07 8 15 x 15 exc O R 3708144 3987919 V 3 07 6 50 x 16 O R 3708144 3987919 1565813 A 3 07 8 00 x 16 5 3708144 3987920 15658 13 L 3 07 6 50 x 16 0 R V 3708144 3987920 1589247 3 07 6 50 x 16 exc 0 R 3708144 3987921 1589247 V GM PARTSDIVISION GENERAL MOTORS CORPORATION CHEVBOLET 72TL I 4 337 4 337 V 4 14 V REV 5 79 Q I