w H D chassis exc LCF 3771340A R 6 75 front cross rear member 63 64 50 60 exc H D frame TDM Diesel rear spring crossmember 63 64 Ser 60 w 197 W B exc SBC H D frame Diesel rear crossmember and frame 63 66 Ser 60 w 197 W B H D fr exc SBC 63 66 Ser 80 w 197 W B 65 66 Ser 60 w H D frame exc LCF Tilt TDM Diesel rear cross 63 65 Ser 60 Diesel 63 66 Ser 60 Cab exc 145 197 W B 63 66 Ser 60 LCF exc 169 W B 63 66 Ser 80 exc TDM 3858688 A R 9 00 rear spring 32 O L x 5 wide 63 70 TDM 3795605 2 16 65 rear spring 7 012 63 66 Ser 50 SBC 67 69 Ser 40 SBC 3905074 1 7 30 7 009 63 66 Ser 60 SBC 65 66 Ser 50 60 exc H D frame TDM rear spring crossmember rear crossmember and frame ext crossmember 65 66 Ser 60 w 197 W B exc SBC H D frame 67 69 Ser 50 w 189 203 W B exc Tilt TDM SBC H D frame Sp H D frame 67 70 Ser 50 60 SBC 67 68 Ser 40 50 Tilt w 163 175 W B rear cross 67 70 Ser 40 50 exc Tilt TDM SBC D D 189 203 W B H D frame Sp H D frame 67 70 Ser 40 50 Tilt exc 163 175 W B 67 69 D D 70 Ser 50 Tilt 3905077 1 6 95 rear spring rear cross 67 69 Ser 50 w 189 W B exc SBC 67 69 Ser 60 w 189 203 W B 67 70 Ser 60 Tilt 163 175 W B 67 70 Ser 50 189 203 W B exc SBC w Sp H D frame exc 212 rear cross 67 70 Ser 60 exc 189 203 W B exc Tilt TDM 67 70 Ser 50 exc 189 W B exc SBC Tilt TDM 67 70 Ser 60 Tilt exc 163 175 W B 67 70 Ser 50 w H D frame exc 189 203 W B 212 3905076 A R 8 25 rear spring 65 66 Ser 60 w 2 Spd 16 000 Ib axle H D frame exc TDM Tilt 2445708 1 20 75 MEMBER ASSY rear spring front bracket cross 65 66 Ser 60 w 2 Spd 16 000 lb axle exc TDM H D A frame 2445705 1 16 50 MEMBER ASSY rear spring front bracket cross 7 039 BRACE BRACKET COVER GUSSET PLATE RElNFORCEMENT WASHER Frame Cross Member 55 59 Ser 4 5 6 second 55 59 Ser 4B 4C 5B 5C 55 Ser 6 exc N 6A 6J 60 62 Ser 60 SBC w 225 W B 61 62 Ser 60 70 175 W B w H D chassis third 55 59 Ser 6 SBC 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S 7 014 7 039 7 14 REv 6 7