SPACER Rear Spring Ser 50 thru 70 exc TDM 4 10 O L V 3765455 2 Ser 50 60 Ser 70 w H D exc TDM SBC Ser 80 12 O L 3768750 2 7 506 BOLT Spring Center Front and Rear Ser 50 thru 80 rear 20 x 6 O L 3768792 A R Ser 80 wySpec H D rear 16 20 63 O L 3771062 2 TNOTE Cut to required length 7 513 CLIP Spring Rebound Ser 30 w H D Ser 40 exc H D rear No 3 leaf 23 x 2 inside dim 3729803 4 Ser 30 w H D Ser 40 exc H D rear N0 7 leaf 23 x 311 Q inside dim 3728623 2 Ser 40 w H D rear No 9 leaf 43 x 2 inside dim 350150 4 Ser 60 exc 197 225 W B Ser 70 80 exc SBC TDM rear No 4 leaf 3 x 2 inside dim 3725915 4 Ser 50 SBC w H D spring Ser 60 w H D exc 243 W B Ser 70 exc SBC TDM H D spring Ser 70 SBC H D 16000 lb 2 SPD axle rear No 5 leaf 3 x 213 inside dim 3733529 4 Ser 50 60 rear No 4 leaf 3 x 2 inside dim 3765454 4 Ser 70 80 i rear No 5 leaf 3 x 3 inside dim 3765463 4 Ser 70 TDM rear short 3773291 4 Ser 70 TDM rear long i 3773297 4 NOTE Previously required 7 516 U BOLT NUT Rear Spring NOTE See page 745 of P A 30 for pictorial explanation of dimensions A B C D E T Ser 10 20 4 WD 13 13 2 31 2 2390797 4 Ser 20 30 D D VAN 10 10 2l 33 4 3753741 4 Ser 30 exc D D VAN 8 8 2 33 2 3753742 4 Ser 40 1 1 1 1 23 4 4 3753730 4 Ser 50 thru 80 exc TDM 13 14 3 42 3 3765221 4 Ser 50 thru 80 exc TDM Aux spring 15 16 3 42 3 3763790 4 Ser 10 20 4 WD Ser 20 30 D D VAN Ser 30 NUT 18 373912 5 813 8 Ser 50 thru 80 NUT 16 3765653 8 NOTE Previously released 7 518 PLATE SPACER SHIM CLAMP Rear Spring U Bolt Ser 10 4 WD anchor 2384025 2 Ser 20 4 WD D D VAN Ser 30 anchor 3762845 2 Ser 20 30 D D VAN anchor 3712852 2 Ser 50 Ser 60 SBC exc 243 W B anchor 3765655 4 Ser 60 exc SBC Ser 60 w 243 W B Ser 70 SBC exc 16000 lb SGL SPD axle anchor square axle housing 3765657 2 Ser 60 70 exc SBC TDM Ser 60 70 SBC exc 197 225 W B right anchor round axle housing 3765662 A R Ser 70 exc SBC TDM Ser 70 SBC wr 16000 lb SGL SPD axle anchor 3765661 1 Ser 80 left anchor 3765663 1 Ser 80 right anchor 3765664 1 Ser 10 20 4 WD SPACER left w dowel 2390748 1 Chevrolet Motor TRUCK MODEL CATALOG General Motors Corporation