63 66 Ser 50 w 157 W B exc 4 cyc Diesel 63 Ser 60 w 157 W B exc 17 000 Ib 2 Spd axle A P T Diesel 63 66 Ser 60 w 157 W B exc P T Diesel 20 800 23 000 Ib spring 63 66 Ser 60 Tilt w 175 W B exc Diesel 63 65 Ser 60 Diesel w 157 W B exc 17 000 lb 2 Spd axle 20 800 23 000 Ib spring TDM 65 Ser 50 4 cyc Diesel w 157 W B 65 66 Ser 50 Tilt 4 cyc Diesel w 175 W B 15 000 lb axle w H D Brake Booster 65 66 Ser 60 Tilt 4 cyc Diesel 133 145 W B w 16 000 Ib 2 Spd axle 66 Ser 50 Tilt 175 W B w 15 000 lb axle exc Diesel 67 Ser 50 60 Tilt w 175 W B Gas 1st design 3823639 1 1 65 front support 63 66 Ser 50 145 W B w 15 000 lb axle exc 4 cyc Diesel 63 66 Ser 60 TDM w 157 W B 8 cyl 63 Ser 60 145 W B w 15 000 lb axle exc P T Air Brake Diesel 63 65 Ser 80 TDM 193 W B w 8 Spd 64 65 Ser 60 145 W B w 20 800 23 000 lb spring exc 17 000 lb 2 Spd axle close ratio Tilt Diesel 64 Ser 60 Diesel 145 W B w 17 000 lb 2 Spd axle exc H D 5 Spd 65 66 Ser 60 4 cyc Diesel 145 233 W B w 15 000 lb axle 65 66 Ser 60 Tilt 4 cyc Diesel 133 W B w 16 000 lb 2 Spd axle exc H D 478 66 Ser 60 145 W B w P T exc LCF Tilt 20 800 23 000 lb rr spring Air Brake 17 000 lb Sgl Spd 67 68 Ser 50 60 8 cyl w 179 189 W B 327 69 70 Ser 50 w 179 189 W B 350 front support 64 Ser 60 Diesel 175 W B w 17 000 lb 2 Spd axle exc 23 000 lb spring 3822192 1 2 75 intermediate support stamped FL 63 65 Ser 50 175 W B w 15 000 lb axle exc Tilt Diesel 63 65 Ser 60 175 W B w 15 000 lb axle exc LCF TDM P T 4 cyc Diesel 63 65 Ser 60 TDM w 193 W B exc 34 500 lb spring 4 cyc Diesel 1971 CHEVROLET MOTOR DIVISION GENIERAL MOTORS CORPORATlON P A 31S REV 6 71 5 1 1 5 432 5 432