63 Ser 50 60 1st design exc 261 W B Tilt 64 65 Ser 50 w 4 000 lb axle front fllange short 20 x 2 hex hd A 67 Ser 40 SBC 67 68 Ser 40 exc 5 000 lb axle 3909795 4 25 front flange plate upper 55 59 Ser 4 exc SBC H D 3713352 4 20 front flange long 1 20 x 3 55 59 Ser 4 w H D 55 59 Ser 4 SBC 55 59 Ser 5 6 63 Ser 60 1st design exc 261 W B front flange short 1 8 x 2 68 70 Ser 40 exc D D Tilt 68 70 Ser 50 exc 7 000 Ib axle 3698992 4 40 front shock absorber axle bracket 53 59 Ser 4 SBC 55 59 Ser 4 w H D 55 59 Ser 5 6 3698993 4 55 from flange long 18 x 3 Vu 51 55 Utility 1st Ser 55 59 All exc H D axle 55 59 Ser 4 60 62 Ser 40 60 61 Ser 70 SBC w 15 000 lb axle 60 62 Ser 50 60 w 13 15 000 Ib axle 63 65 Ser 50 60 3750740 12 60 rear flange 18 x 1V hex hd 57 59 Ser 9 10 w Air Brake 2363538 2 25 rr brake spider to hsg 20 x 2Vl Eaton 45120 disc 62 Ser 80 w 11 000 Ib I Beam 63 70 Ser 60 80 w 9 1 1 000 lb axle 69 Ser 60 w Dual Brakes 2399588 8 74 frt flange plate 16 x 1 63 66 Ser 50 exc 5 000 lb axle front flange plate 20 x 3 67 68 Ser 40 exc Cowl Tilt 5 000 lb axle 3829960 4 35 front flange plate and brk bolt lower 63 Ser 50 w 5 000 lb axle 63 Ser 60 w 5 000 Ib axle 1st design 63 64 Ser 60 w 5 000 Ib axle 2nd design 65 66 Ser 50 60 exc 7 000 Ib axle 67 70 Ser 40 w 5 000 lb axle 67 70 Ser 50 exc 7 000 Ib axle TDM Tilt 3841670 4 35 front flange plate 2nd brk bolt lower 18 x 3 9 Il 63 65 Ser 60 w 7 000 lb axle 63 65 Ser 80 w 7 000 lb axle exc 4 cyc Diesel 65 Ser 80 4 cyc Diesel exc TDM 66 Ser 60 exc Diesel 66 Ser 60 Diesel exc TDM 67 70 Ser 50 60 w 7 000 Ib axle 3819408 4 40 front flange plate upper 18 x 2 z 63 65 Ser 60 w 7 000 Ib axle 63 65 Ser 80 w 7 000 lb axle exc 4 cyc Diesel 65 Ser 80 4 cyc Diesel exc TDM 66 Ser 60 exc Diesel 66 Ser 60 Diesel exc TDM 67 70 Ser 50 60 w 7 000 lb axle 3819409 4 55 front flange plate lower 18 x 3 z 63 64 Ser 60 2nd design exc 261 W B 65 66 Ser 50 60 w 7 000 lb axle 67 69 Ser 40 w 5 000 Ib front axle exc P S SBC Tilt 67 69 Ser 50 exc TDM Tilt 7 000 lb front axle 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S REV 6 71 s s 5 002 5 002