7 506 BOLT Spring Center Front and Rear ALL ALL universal 24 x 5 3723009 A R 50 ALL ALL spec cr rec 24 x 3 3723010 A R 35 ALL ALL universal 24 x 9 290M steel 3768790 2 70 3 ALL Ser 4 6 spec cr rec 24 x 6 3702336 A R 50 56 57 TDM 58 59 Ser 7 8 9 10 front fill plain head 20 x 3 3727780 2 50 56 59 Ser 7 8 9 10 exc TDM SBC rear and aux spring 20 x 8 3736778 2 1 20 57 Ser 9 w H D spring 58 59 Ser 10 w H D spring front 20 x 4 3741920 2 35 57 59 Ser 9 10 exc TDM SBC rear fill head 20 x 9 3740927 2 1 45 60 66 Ser 60 thru 80 w Spec H D rear 20 6 O L part of Springs exc TDM J 3765405 300M steel 3771062 2 50 62 ALL w I Beam axles 65 Ser 80 TDM 4 cyc DIESEL w 11000 lb axle front 20 x 5 0 L 2378689 2 1 65 60 62 ALL 63 66 Ser 50 60 exc Air Brake 20 800 lb spring 63 66 Ser 80 exc 23 0001b spring rear 20 x 6 3827948 A R 60 63 Ser 50 exc 2 SPD H D rr spring rear 20 x 4 3818296 1 50 63 66 Ser 80 front 20 x 5 3822272 2 50 63 66 Ser 60 front 63 66 Ser 50 thru 80 rear 20 x 3 3827946 2 35 65 Ser 80 TDM 4 cyc DIESEL rear center spacer 23953310 1 2 55 NOTE Cut to required length 7 5l3 CLIP STUD SPACER BOLT Spring Rebound Front and Rear Bolt Type exception shown 55 59 Ser 4 5 63 66 Ser 50 60 w 17 500 lb axle rear N0 6 leaf 2 x 3 inside dim 3728623 2 35 SS Ser 5 w H D 56 59 Ser 5 front N0 6 leaf 2 x 3 inside dim 3730980 4 50 55 56 Ser 6 1 57 59 D D front outer 2 x 2 inside dim 597158 4 30 55 59 Ser 6 exc SBC 55 59 Ser 6 SBC rear 5 x 2 inside dim 3717662 4 75 56 57 Ser 7 8 9 10 exc TDM 60 62 Ser 40 front short No 3 leaf 2 x 2 inside dim 3729803 4 45 56 59 SBC rear N0 5 leaf 3 x 2 ix aside dim 60 Ser 50 thru 70 exc TDM Part of 3733513 4767 3765402 3733529 4 55 S6 59 Ser 7 8 9 10 exc TDM SBC rear No 4 leaf 3 x 2 inside dim 60 65 Ser 60 thru 80 exc TDM part of 3726054 5914 3734820 3740901 3765403 63 66 Ser 60 TDM w 7000 lb axle front 3725915 4 50 60 62 Ser 50 60 rear No 4 leaf 3 x 2 inside dim part of 3765401 3765454 4 45 60 64 Ser 50 thru 80 exc TDM rear N0 5 leaf 63 66 Ser 60 80 w H D frt spring front 3 x 3 ins dim 3765463 4 75 60 63 TDM 64 Ser 60 TDM 65 66 TDM exc 4 cyc DIESEL rear short 1Z x 3 inside dim 3773291 4 2 10 60 62 TDM exc H D spring 63 65 Ser 80 TDM 66 Ser 60 TDM DIESEL rear long 5 x 4 inside dim 3773297 4 4 95 60 62 TDM w H D spring rr axle 63 66 Ser 80 TDM w H D spring rr axle rear long 5 Vu x 4 inside dim 3782851 4 4 95 63 66 Ser 50 rear 2 x 2 inside dim 3745869 2 40 63 66 Ser 50 60 exc TILT SBC w 261 W B front 2 x 2 inside dim 3822269 2 40 uf 7506 7513 826 Chevrolet Motor HDT General Motors Corporation REVISED MAY l 1966