65 Ser 80 TDM 4 cyc Die sel 2438373 2 45 10 main 65 Ser 80 TDM 4 cyc Diesel 2438374 2 43 40 rapper LEAF Rear Spring Radius 60 62 Ser 50 thru 80 exc TDM 3765456 2 14 30 63 Ser 50 63 67 Ser 60 exc H D equip 3827724 2 9 00 27VzU 0 L 7 506 BOLT Spring Center Front and Rear All All 3723009 A R 65 universal 24 x 5 Note 1 All All 3723010A R 40 spec cr rec 24 x 3 Note 1 All All 3768790 2 90 universal V 24 x 9 290M steel Note 1 All Ser 4 6 3702336 A R 65 spec cr rec 24 x 6 56 59 Ser 7 8 9 10 exc TDM SBC 3736778 2 1 60 rear and aux spring Vz 20 x 8 62 All w I Beam axles 65 Ser TDM 4 cyc Diesel w 11 000 Ib axle 2467439 1 2 70 V2 20 x 9 60 62 All 60 66 Ser 60 thru 80 w Spec H D Springs exo TDM 63 66 Ser 50 60 exc Air Brake 20 800 Ib spring 63 66 Ser 80 exc 23 000 lb spring 67 69 Ser 50 60 w 23 000 Ib rear spring exc TDM 67 70 Ser 40 50 w 15 000 Ib rr spring 67 70 Ser 50 60 w 20 800 Ib rr spring 67 70 Ser 60 TDM w 39 000 Ib rr sprg 3827948 A R 75 rear V2 20 x 6 63 Ser 50 exc 2 Spd H D rr sprg 3818296 1 60 rear Vz 20 x 47 63 66 Ser 80 3822272 2 65 front V2 20 x 5Vz 63 66 Ser 60 67 70 Ser 40 thru 60 front 63 66 Ser 50 thru 80 3827946 2 40 rear Vg 2O x 3 Note 1 67 68 Ser 60 w 1 1 000 Ib axle 11 000 Ib frt spring 68 70 Ser 60 Tilt TDM w 11 000 lb 14 000 lb rear spring 69 70 Ser 60 w 11 000 Ib axle 3902676 2 65 front Vz 2 x 5Vz 70 Ser 60 Tilt w 10 500 lb frt spring 2469476 2 3 50 rear NOTE 1 Cut to required length 7 513 CLIP BOLT SPACER STUD Spring Rebound Front and Rear Bolt Type exception shown 55 59 Ser 4 5 63 66 Ser 50 60 w 17 500 Ib spring 67 70 Ser 40 50 w 17 500 Ib spring exc D D 3728623 2 40 rear No 6 leaf 2 V x 3 V inside dim 56 57 Ser 7 8 9 10 exc TDM 60 62 Ser 40 3729803 4 55 front short No 3 leaf 2 4 x 2 inside dim 56 59 SBC 60 Ser 50 thru 70 exc TDM 3733529 4 64 rear No 5 leaf 3V x 2 inside dim part of 3733513 4767 3765402 56 59 Ser 7 8 9 10 exc TDM SBC 60 65 Ser 60 thru 80 exc TDM rear No 4 leaf 3V x 2 inside dim part of 3726054 5914 3734820 3740901 3765403 63 66 Ser 60 TDM w 7 000 lb axle 67 70 Ser 60 rear 1971 CHEVROLET MOTOR DIVISION GENERAL IMOTORS CORPORATION P A 31S REV 5 71 7 47 7 505 7 513