TURBO HYDRAMATIC TRANSMISSION GMC GROUP 4 205 Con 73 78 All M H C w T H 400 475 8623983 1 8 20 VALVE vacuum modulator 17 4426H 73 78 All Blazer Jimmy w T H 350 6261516 1 5 50 VALVE vacuum modulator 17 4426H J 78 C1 2 3 03 Diesel 474636 1 46 75 VALVE vac reg 17 4426H 4 218 RING SEAT SPACER UNIT SPRING VALVE UNIT Transmission Main Valve 75 79 All M3B 3870353 1 56 SEAT oil clr by pass vlv 17 4126 73 78 All M H C w T H 400 475 8823368 I 19 SPACER UNIT trans press reg spring 17 4125 73 78 All M H C w T H 400 8625848 I 2 91 SPRING front pump oil press reg valve 17 4125 i 73 78 All M l l C w T H 475 8623090 1 1 64 SPRING trans frt oil pump press reg valve 17 4125 15 78 All Blazer Jimmy w T H 350 3977543 I 56 VALVE UNIT oil cooler by pass 4 224 BODY ASM COVER ASM COVER UNIT GASKET RING SCREEN ASM Transmission Oil NOTE 1 Consists of cover and seal asm bearing asm two spacers aii pump thrust and instruction sheet 73 78 All M H C w T H 400 475 8625954 1 N L BODY ASM front oil 17 4100 7378 All Blazer Jimmy w T H 350 6264919 I 138 00 BODY ASM oil pump 17 4100 73 78 All M H C w T H 400 475 8626966 I 127 80 COVER ASM front oil pump 17 4103 73 78 All Blazer Jimmy w T H 350 464181 I N L COVER UNIT trans oil pump Nota I 17 4103 74 78 All M38 8261235 1 38 GASKET trans oil pump screen 17 4142A 77 78 All Blazer Jimmy w T H 350 8640103 I 1 25 RING oil pump cover steady rest 17 4116 77 78 All M38 8640627 1 1 40 RING oil pump cvr steady rest purple 17 4116 77 78 All M38 8640628 I 1 40 RING oil pump cvr steady rest green 17 4116 77 78 All M38 8840629 I 1 20 RING oil pump cvr steady rest yellow 17 4116 73 78 All Blazer Jimmy w T H 350 6261323 1 I I0 SCREEN ASM oil pump pressure V hole 17 4042H 4 226 GASKET BEARING ASM BUSHING PIN RING SCREW SEAL SPACER WASHER Transmission Front Servo NOTE 1 Also sanxiced as pan of cover unit trans oil pump 4 224 group 7378 All Blazer Jimmy w T H 350 6261664 l N L GASKET pump cover to case 17 4106 73 78 All M H C w T H 400 475 6623976 l N L GASKET front oil pump to case 17 4106 73 78 All Blazer Jimmy w T H 350 9436851 1 4 95 BEARING ASM oil pump thrust 4 164 Note I 6 0410 73 77 All M H C w T H 400 475 8623944 Z 4 02 BUSHING oil pump stator shaft 4 161 17 4085M 73 78 All M H C w T H 350 400 475 8623940 I N L BUSHING oil pump body 17 4102 73 78 All M H C w T H 400 475 8623076 2 18 PIN front oil pump reg valve plug ret 17 4110N 73 77 All M H C w T H 400 475 8626356 2 92 RING oil pump oil seal 4 162 17 4116 73 78 All Blazer Jimmy M H C 6261374 A R 43 SCREW oil pump to case 18 x 1 I 17 4101 73 78 All Blazer Jimmy M H C 6261413 1 I 20 SEAL 0 ring oil pump to case 8 D 17 4121 73 75 All M H C w T H 400 475 3884883 8 28 SEAL front oil pump to trans case i bolt 17 4121 t WAREHOUSING AND DlSTRIBUTl0ND V 5 0N OF GENERAL MOTORS CORPORAT 0N LT TRUCK 5I 4 2054 226 us REV 2 83