Q I I rxoonoss Q A 54 0 728 GEAR CRANKSHAFT Q 1 I Q I10028052 I 55 0 646 CRANKSHAFT STANDARD I Q 10044541 56 0 729 KEY CRANKSHAFT GEAR 0 662 10029208 57 0 219 INDICATOR TIMING Q 1 0043045 58 0 137 SEAL CRANKSHAFT REAR OIL I 10036788 I 2 Q 59 8 970 PLUG SPECIAL FRT OIL GALLEY 3835577 60 0 748 NOZZLEJ TIMING GEAR OIL 1 3875950 61 8 900 BOLT HFH M6X1X13 Q Q 10042901 1 62 1 637 VALVE OIL FILTER BY PASS 25010497 63 1 855 CONNECTOR OIL FILTER I 10004841 64 1 836 FILTER OIL PF40 6439929 I 65 0 659 PULLEY CRANKSHAFT I I 10042814 66 0 662 BOLT CRANKSHAFT PULLEY 1 079 3 10042865 67 8 900 BOLT HEX M16X2X45 V 11509460 68 0 662 WASHER HUB T0 CRANKSHAFT 10042038 69 0 659 HUB CRANKSHAFT PULLEY 4 Q Q 4 10028930 70 0 219 INDICATOR TIMING 10043045 71 0 213 SEALI TIMING GEAR COVER I I Q 10036286 I 72 0 206 COVER TIMING GEAR 1 10044603 73 0 207 GASKET ENGINE FRONT COVER A N 3923472 74 8 900 BOLT HEX 1 4 20X1 2 CAD ZINC V 1Q80016 8 932 WASHER LOCK 1 4 EX TH ZINC Q 121753 I 75 0 736 GEAR CAMSHAFT Q I Q 10101790 76 N S BEARING CAMSHAFT THRUST QQ 1 77 0 738 RING Q CAMSHAFT GEAR SPACING I Q 549631 78 0 738 KEY CAMSHAFT GEAR I Q 10029974 79 0 519 CAMSHAFT Q J 10029787 1 80 Q 0 539 BEARING CAMSHAFT J 1 1 4002525 I 81 6 900 BOLT HEX M8X1 25X25 9 8 PHOS Q Q 11508353 I 8 900 BOLT HEX M8X1 25X40 9 8 PHOS 1 11509399 1 8 800 SEALANT LOCTITE PIPE W TEFLON Q Q 1052080 Q 82 I N S PUMP COOLANT W MOUNTING GASKET Q 83 1 079 GASKET COOLANT PUMP 1987 88 10003210 1 079 GASKET COOLANT PUMP 1989 90 10124674 64 1 639 BEARING OIL PUMP UPPER SHAFT LOWER 10004842 85 1 639 SHAFT OIL PUMP DRIUPPER 1977131 86 1 639 GEAR OIL PUMP DR SHAFT 1962052 87 1 639 BEARING OIL PUMP UPPER SHAFT UPPER 4 10008555 88 8 900 BOLT HEX M8X1 25X16 11509589 s 89 1 723 PLATE OIL PUMP DR SHAFT COVER Q L 10031030 90 0 033 ENGINE PARTIAL 2 1 91 0 293 PIN CYLINDER HEAD DOWEL 5 16X1 1 16 1 Q 522780 92 0 459 LIFTER I 5233745 93 0 480 GUIDE VALVE LIFTER I 10028057 94 0 480 RETAINER VALVE LIFTER GUIDE I Q 10028056 95 2 361 DISTRIBUTOR IGNITION 1987 1103634 Q Q 2 361 DISTRIBUTOR IGNITION 1988 90 Q A 1103773 NOTE 1 REFER TO SPARK PLUG WIRE CHART INGROUP 2 000 I NOTE 2 SEE PARTS CATALOG 1 Q W 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52M i Q 0 000 GROUP I Q 0 12 Q 1 91