69 Ser 50 60 1st design exc Tilt TDM SBC Diesel Dual Brakes Air A Brakes 18 500 Ib axle 69 Ser 60 Tilt 1st design exc Air Equip 18 500 lb axle Dual Brake 69 70 Ser 40 w Brake Booster 2nd design exc D D 69 70 Ser 50 60 2nd design exc Dual Brake A O H B Air Brake 3964524 1 30 SPRING check valve Bendix 2508500 Orange 4 655 60 62 TDM 66 Ser 60 4 cyc Diesel exc TDM 67 68 Ser 60 TDM exc A O H B 68 Ser 50 TDM w Dual Brakes 68 Ser 40 thru 60 SBC w Frame Mounted Brake Booster 3775234 1 05 WASHER check val sprg Midland 100379 66 Ser G0 4 cyc Diesel exc TDM 67 68 Ser 60 TDM exc A O H B 68 Ser 40 thru 60 SBC w Frame Mounted Brake Booster 2405502 1 42 WASHER check valve Midland 4 X 584 4 957 ADAPTER GASKET Vacuum Power Brake 55 59 All exc TDM 60 Ser 50 thru 80 exc Air Equip 61 62 Ser 50 60 exc H D Brake Booster Air A Equip 3686664 A R 80 cyl tp brake pipe tee pipe assy Vl6 24 int x V2 20 ext thds 56 59 TDM 3727826 1 70 cyl to brake pipe tee conn tee pipe assy Vz 20 int and ext thds 4 866 55 59 All 799303 A R 06 GASKET cyl to brake tee connector pipe assy adapter V1 I D x O D 4 661 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S REV 6 71 4 345 4 955 4 957