67 70 Ser 50 60 SBC w 253 V2 W B exc 15 17 000 lb 2 Spd axle 67 68 Ser 50 60 Tilt w 145 W B 2 cyc Diesel if w 2 Spd axle F 3 3737105 1 56 58 Ser 9A H D 5 Spd w H D axle 59 Ser 9A exc P T 60 63 TDM w 157 W B exc aux trans 8 Spd 64 65 Ser 80 TDM w 157 W B exc 34 000 Ib axle P T 8 Spd aux trans 4 cyc Diesel 66 Ser 80 TDM w 157 W B exc I 0 Sgl Spd aux trans 70 Ser 50 Tilt w 175 W B 8 cyl exc 17 000 lb 2 Spd axle 70 Ser 60 Tilt w 175 W B exc 17 000 18 500 23 000 Ib axle 427 F 3 3757005 1 When using 3757005 in place of 3771379 it will be necessary t0 use 3789498 Z When using 3757005 in place of 3777165 it will be necessary to use 3789499 56 57 Ser 9B 10B vii H D axle 58 59 Ser 9B 66 Ser 60 TDM Diesel w 193 W B 2 Spd axle F 3 3757007 1 57 Ser 5C 6C w H D axle exc P T 2 Spd 63 64 Ser 60 TDM w 157 W B 1st design F 3 3746818 1 57 Ser 5C 6C w 2 Spd H D axle 61 62 Ser 60 LCF w 121 W B 2nd design exc P T 16 17 000 lb axle 65 Ser 60 4 cyc Diesel w 145 W B 16 000 Ib 2 Spd axle 478 exc Tilt LCF F 3 47 3746817 1 57 59 Ser 6 P T w H D axle exc SBC 57 59 Ser 6D 6V w P T exc H D axle 59 Ser 7C w P T Clark 5 Spd H D Sgl Spd axle 348 67 70 Ser 50 60 w 167 203 W B 366 Diesel 15 000 17 000 lb 2 Spd axle F 3 3746811 1 57 Ser 7B 8B w H D axle exc P T 2 Spd 58 59 Ser 7B w H D axle exc P T Clark 5 Spd 2 Spd 63 65 Ser 60 SBC w 225Vz W B 2nd design exc P T 63 64 Ser 60 TDM w 193 W B 1st design F 3 3738633 1 57 59 Ser 7B 8B w 2 Spd H D axle 283 67 70 Ser 50 149 W B w 2 Spd axle exc 366 Diesel 67 70 Ser 50 203 W B exc 2 Spd P T 366 Diesel 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S 1 5 441 5 441 5 128 REV 6 71