I BRAKES 50 60 65 4 936 COVER VACUUM CYLINDER VALVE 4 1930 1 1 1 2484897 Assy 691294 2006731 2 3 2020251 3965337 8 2503212 Relay Va ve Rep 2487468 1 1 2490594 Assy 691295 2503242 ReIay Valve 4 940 KIT REPAIR VACUUM CYLINDER VALVE 4 1865 1 1 1 3878609 Assy 2006731 2 3 3965337 8 2504132 VaIve Body nc Body Cover 1 1 3878610 Assy 691294 5 2020251 2504133 VaIve Body IncI Body Cover 4 940 BODY VACUUM CYLINDER VALVE 4 1880 1 1 2490593 Assy 691295 2504069 IncI Body Cover Retainer Seal Sprg Valve 4 940 SCREW VACUUM CYLINDER RELAY VALVE BODY 4 2099 4 4 4 3830342 Assy 691294 5 2006731 2 3 2020251 3965337 8 2502197 No 12 24 x Hex Self Tap 4 942 RETAINER VACUUM CYLINDER DIAPHRAGM 4 2064 1 1 3890087 Assy 691294 5 2020251 2503204 Return Spring 3 Dia Steel 4 942 RETAINER VACUUM CYLINDER RELAY VALVE DIAPHRAGM 4 2067 1 1 1 3830321 Assy 691294 5 2006731 2 3 3965337 8 2501495 SIave CyI R ID 2 sz OD Steel 4 942 RETAINER VACUUM CYL SLAVE CYLINDER VALVE 4 2072 1 1 1 3830353 Assy 691294 5 2006731 2 3 2020251 3965337 8 2501232 Valve Stem 1 1 1 3830322 Assy 691294 5 2006732 2020251 2501494 Spring 4 942 SPRING VACUUM CYLINDER RELAY VALVE OR HUB 4 2125 1 1 1 3830386 Assy 691294 2006731 2 3965337 8 2502099 S ave Cyl Relay Valve Return Outer 1 1 1 3830332 Assy 691294 5 2006731 2 3 2020251 3965337 8 2501230 S ave Cyl Relay Valve Return 0n Valve Stem 1 3830349 Assy 2006733 2501246 SIave Cyl Relay Valve Return 0uter 1 1 3918752 Assy 691295 2020251 2506042 SIave Cyl Relay Valve Return Outer 4 944 MANIFOLD VACUUM CYLINDER 4 2017 See Group on Valve Vacuum Cylinder 4 944 VALVE VACUUM CYLINDER 4 2155 1 1 1 3830352 Assy 691294 5 2006731 2 3 2020251 3965337 8 2501229 S ave CyI Poppet Stem 4 955 VALVE CHECK BRAKE ALSO SEE RPO N0 J 4 31 80 1 1 1 2042982 CD CE ME Bendix 289874 D0ub e Check Valve Bi Stop Light Switch Ccmp ete W Trac Pac Bi Hy Park Brk Eff 1978 y 1 1 1 2023454 CD CE ME MidIand Doub e Check At Frt Tank W Trac Pac Brk Details Not Available at Time of Publication 1 1 328691 CE CG CS SE SG SM SS 378833 Type V 2 14 14 Pipe Thd Vacuum Pressure Protection Check 2 Reqd w Dual Brake System Repl 328691 1 1 1 8869146 CE CS SE SG SM SS TE TG TM 25054S5 Bendix Vacuum Sing e Check w Cowl Only on C S ModeIs RepI 3757922 3766330 3914911 13 1 1 1 8869147 CE CG CM CS SE SM SS TE TM 2505466 Bendix Vacuum DoubIe Check w Dual Brake System Rep 3763952 3914912 3918347 1 1 2029932 CE Hyd Diverter or Supply Valve Tee W Hyd Spring Parking Brake Comp ete Eff w 1978 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION 78TM 1 N S reference only Added this issue 4 189 4 936 4 955 AR PART 1 J