4 917 RETAINER UNIT RETAINER RING SPRlNG Vacuum Power Brake Cylinder Ser l0 thru 30 exc D D VAN 4 WD Ser 20 30 w H D brake booster 4 hyd cyl piston cup Bendix 377849 3738728 l Ser 40 w H D brake booster Ser 50 60 RETAINER Bendix 379616 3775225 1 Ser 20 30 w H D brake booster RING cyl valve body snap Bendix 373919 2208732 2 Ser 20 30 w H D brake booster RING hyd cyl piston snap Bendix 379385 3769725 1 Ser 20 thru 40 w H D brake booster Ser 50 60 n RING hyd piston snap Bendix 377320 n 1463294 l Ser 40 w HD brake booster Ser 50 60 RING push rod pin retaining Bendix 378799 3764130 1 Ser 70 exc TDM RING push rod cup washer retaining 2402009 1 Ser 70 TDM n RING piston valve retaining O D 2400880 1 Ser 20 30 Wy H D brake booster SPRING valve seat Bendix 379379 3767343 l Ser 20 30 w H D brake booster SPRING relax valve poppet Bendix 379375 3768402 l Ser 40 w l I D brake booster Ser 50 60 SPRING relay valve seat Bendix 379834 3775245 l Ser 40 w H D brake booster Ser 50 60 i SPRING piston cup seal retainer Bendix 379615 3775224 1 NO l E Previously released 4 918 VALVE SPRING SEAI RING STOP SEAT Vacuum Power Brake Cylinder Ser 70 exc TDM cyl piston intake hex 1 long 2402014 1 Ser 70 TDM Ser 80 cyl piston intake 11 6 head dia 3775319 I Ser 70 exc TDM SPRING piston intake valve H5 tree length 4 coils 2402015 1 Ser 70 TDM Ser 80 SPRING piston intake valve O D w 4 coils 3775317 1 Ser 70 80 SPRING piston retarder valve IQ O D w 6 coils 3772658 l Ser 70 exc SBC SEAL O ring piston retarder valve stop seal M x 5 2402029 1 Ser 70 exc TDM RING piston retarder valve retaining 3774496 1 Ser 70 exc TDM STOP piston retarder valve dia x 6 thk 3774500 l Ser 70 TDM Ser 80 SEAT piston retarder valve spring 1 dia x thk 3774502 1 4 922 PLATE ASSElVlBl Y DIAPHRAGM CUP RING WASHER RETAINER PLATE Vacuum Power Brake Cylinder Ser 70 exc TDM w diaphragm 6 ribs 2390306 l Ser 70 TDM w diaphragm front 3 ribs 3772429 1 Ser 70 TDM Ser 80 wi diaphragm rear 2268099 I Ser 40 w H D brake booster Ser 50 60 DIAPHRAGM cylinder Bendix 379625 3775231 1 Ser 70 exc TDM CUP piston and push rod tig O D x thk rubber 3775026 Att Ser 70 TDM RING piston rod cup washer retaining ll Q dia 2400879 l Ser 20 30 w H D brake booster WASHER piston plate ret g Bendix 378887 3764140 2 Ser 40 w H D brake booster Ser 50 60 WASHER plate assy retainer Bendix 379627 3775233 1 Ser 70 TDM Ser 80 WASHER push rod tube end plug QQ 2268127 A R Ser 70 TDM WASHER piston rod cup tront 2 2339657 I Ser 20 30 w H D brake booster RETAINER felt Bendix 378885 3764132 1 Ser 20 30 w H D brake booster PLATE piston rear Bendix 378889 3764133 l Ser 20 30 w H D brake booster PLATE piston tront Bendix 378888 3764134 1 NOTE Previously released 8 Iiffiit Mm iv i 191 4 917 4 922 General Motors Corporation rRUqK M4 r 5 CATALOG