B FRONT AXLE STE ERlNG l 1 6 635 e RE ERV lR ASSY CAP ASSY SEAL Steering Gear Hydraulic Pump V on t e 69 70 All Blazer V 5688109 2 SEAL reservoir bolt O D 6 655 PULLEY V NUT Steering Gear Hydraulic Pump n 63 67 Ser 10 thru 30 exc 292 68 69 Ser 10 thru 30 8 cyl exc B V V 350 396 9 T 68 69 Ser 10 thru 30 6 cyl exc T l 1 292 1 A I R V V l 3 70 Blazer V 70 72 All Blazer 250 3791943 1 5 4 0 D 1 66 69 Ser 10 20 w A l R 6 cyl exc i 292 69 Ser 30 6 cyl exc D D 3880866 1 5 4 O D Q 67 69 Ser 10 thru 30 292 exc 5 A l R D D a V V V 70 72 Ser 10 thru 30 292 3906398 1 V V 67 69 Ser 20 30 D D 3 53 3 70 Ser 30 Diesel 3867027 1 4 0 0 68 69 Sar 10 thru 30 350 396 70 Ser 10 thru 30 Blazer 8 cyl 3925537 1 V 71 72 Ser 10 thru 30 Conv 4 WD Blazer 8 cyl l 71 72 Ser 20 30 D D 8 cyl exc M H C 3993325 1 1 71 Sar 30 M H C 71 72 V G 10 thru 30 8 cyl exc floor mounted A C V 3770509 1 V B V 71 72 G 10 thru 30 8 cyl w floor z mounted A C 1 V 72 M H C exc 400 3993341 1 V 71 72 MV H C 400 3941107 1 e V 72 All Blazer 250 3860457 1 63 67 Ser 10 thru 30 V 70 72 All Blazer 3824475 1 NUT pulley 18 V 6 660 BELT Steering Geer Hydraulic Pump Drive i NOTE See Group 1 066 for Belt application 6 665 V PULLEY NUT Power Steering Pump Idler 71 G 10 thru 30 3976275 1 w support assy 71 G 10 thru 30 w floor mounted 1 V V A C 3898578 1V NUT A C comp idler pulley and support 6 670 HOSE Steering Gear Pressure 1 1 NOTE 1 Support 3914440 may also be required V V V NOTE 2 It may be necessary to cut pipe at pump and and remove nut Replace it with 5693981 nut 63 66 Ser 10 thru 30 3893004 1 pump to control valve inlet P S 4 1 installation Unit 63 66 Sar 10 thru 30 3893005 2 control valve to cyl P S Installation Unit 67 68 Ser 10 thru 30 exc D D V V i A 4 WD 1 68 Ser 20 30 D D 3914441 1 left turn 16 long booster Nota 1 V 67 68 Ser 10 thru 30 exc D O 4 WD V e 68 Ser 20 30 D D 3914442 1 right turn 16 long booster Note 1 67 Ser 10 thru 30 Conv w P S V A 68 Ser 10 thru 30 Conv w P S 6 exc 396 1 V 68 Ser 20 30 D D w P S 3914425 1 pump outlet w booster power strg 69 72 M H C 3999989 1 pump outlet V 69 72 Ser 20 30 D D 6 cyl 3975152 1 pump outlet pressure and return 69 Ser 20 30 D D 8 cyl 1 V V 69 Ser 10 20 4 WD 8 Vcyl 70 72 Ser 10 20 4 WD Blazer K 8 cyl 2 3975137 1 pump outlet Note 2 68 72 Ser 10 thru 30 Conv Blazer C exc 396 1 V V 70 72 4 WD 6 cyl 3975136 1 pump outlet V 68 Sar 10 thru 30 w Hyd Strg r 396 Q A w integral pwr strg 69 72 Ser 10 thru 30 Conv 396 V y 400 i 3975151 1 pump outlet pressure and return 71 72 G 10 thru 30 8 cyl V 7817324 1 pump outlet r GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL t V 6 635 6 670 l 1 s so V REV 5 79