0 626 NUT Engine Connecting Rod Bolt Con t I U2 4 32 LB4 3866766 12 43 NUT CONN ROD HEX 3 8 24 3 8 24 90 91 LM1 4 3B L I HEX PGO 19 6 0 629 I PISTON Engine V I 85 89 M1 4 3N 2 10049075 6 60 25 PISTON W PlN 030 O S PGO 19 2 ui 85 89 M1 4 3N 2 10159424 6 60 25 PISTON W PIN SERV STD PGO 19 2 85 89 M1 4 3N Z 10159425 6 60 25 PISTON W PIN SERV STD HI LIMIT I I PGO 19 2 1 4 32 LB4 10049075 6 60 25 PISTON W PIN 030 O S PGO 19 2 I 4 32 LB4 10159424 6 60 25 PISTON W PIN SERV STD 51 4 0008 3 9998 PGO 19 2 90 91 LM1 4 32 LB4 10159425 6 60 25 PISTON W PIN SERV STD HI LIMIT 2 4 0021 4 0012 PGO 19 2 90 91 M1 4 3B LU2 A TRNS MD8 10181389 1 61 65 PISTON W PIN STD V 90 91 M1 4 3B LU2 A TRNS MD8 10181390 1 61 65 PISTON W PIN HI LIMIT 90 91 M1 4 3B LU2 A TRNS MD8 10181392 1 61 65 PISTON W P N 030 O S A 0 643 RING KIT Engine Piston 85 89 M1 4 3N 2 14089025 6 N L RING KIT PISTON STD PGO 19 1 85 89 M1 4 3N 2 14089026 6 22 35 RING KIT P STON 030 0 S PGO 19 1 V 90 91 LM1 4 3B LU2 4 32 LB4 14089025 6 N L RING KIT PSTN STD PGO 19 1 90 91 LM1 4 3B LU2 4 32 LB4 14089026 I 22 35 RING KIT PSTN 030 0 S PGO 19 1 0 646 CRANKSHAFT Engine NOTE FOR MODELS W MJT ALSO INSTALL 3752487 CLU PILOT BEARING I NOTE 1 SERVICE CRANKSHAFT 14088639 REQUIRES SINGLE WOODRUFF KEY 14089209 86 89 M1 4 32 14088639 1 476 00 CRANKSHAFT NOTE 1 PGO 27 62 90 91 LM1 4 3B LU2 4 32 LB4 14088639 1 476 00 CRANKSHAFT NOTE 1 PGO 27 62 85 M1 4 3N 14071174 1 I 476 00 CRANKSHAFT PGO 20 66 0 649 BEARING Engine Crankshaft Clutch Pilot I 85 89 M1 4 3N 2 3752487 1 N L BEARING CLU PILOT PGO 19 34 0 659 DAMPER PULLEY RETAINER SEAL Engine Crankshaft i I 85 86 M1 4 3N Z I 14081202 1 53 25 DAMPER TORSIONAL PGO 20 69 87 89 M1 4 32 10045298 1 51 00 DAMPER TORS ONAL PGO 35 55 90 91 LM1 4 3B LU2 4 32 LB4 10045298 1 51 00 DAMPER CR SHF TORS PGO 35 55 85 M1 4 3N 14023147 1 27 75 PULLEY CR SHF 2 GROOVES 6 3 4 DIA 85 M1 4 3N A C 14055146 1 35 25 PULLEY CR SHF BFC PGO 20 72 J 85 M1 4 3N EXC A C 14081226 1 V 27 25 PULLEY CR SHF CN 86 M1 4 32 EXC A C 10069913 1 27 75 PULLEY CR SHF CCW PGO 28 71 86 M1 4 32 A C 14088985 1 35 25 PULLEY CR SHF CCT PGO 28 71 87 89 M1 4 32 A C 14102091 1 20 00 PULLEY CR SHF ND PG1 26 6 87 M1 4 32 EXC A C 14102092 1 20 00 PULLEY CR SHF NF PG1 25 5 88 M1 4 32 HTR C41 C42 1 4102092 1 20 00 PULLEY CR SHF N F PG1 25 5 89 M1 4 32 HTR C42 14102092 1 20 00 PULLEY CR SHF NF PG1 25 5 90 91 LM1 4 3B LU2 4 32 LB4 10085754 1 20 00 PULLEY CR SHF PG1 31 5 86 89 M1 4 32 10108477 1 30 25 RETAINER CR SHF RR SEAL PGO 27 39 90 91 LM1 4 3B LU2 4 32 LB4 10108477 1 30 25 RETAINER CR SHF RR OIL SEAL PGO 27 I 39 90 91 L1 15640014 2 5 90 SEAL TORS BAR PG6 11 2 I 0 662 BOLT KEY WASHER Engine Crankshaft Pulley and Balancer V 86 89 M1 4 32 10045398 3 80 BOLT CR SHF PULLEY Q 90 91 LM1 4 38 LU2 4 32 LB4 10045398 3 80 BOLT CR SHF PUL 90 91 LM1 4 3B LU2 4 32 LB4 14089209 1 95 KEY TORSIONAL DMP PGO 36 61 Y 85 89 M1 4 3N 2 14060682 1 1 25 WASHER CR SHF BALANCER PGO 28 I I 69 90 91 LM1 4 3B LU2 4 32 LB4 14060682 1 1 25 WASHER CR SHF BAL PGO 28 69 0 666 FLYWHEEL Engine Crankshaft I I 89 M1 4 32 LB4 A TRNS MD8 10128414 1 N L FLYWHEEL ENG PGO 35 49 90 91 LM1 4 3B LU2 4 32 LB4 A TRNS MD8 10128414 1 N L FLYWHEEL ENG PGO 35 49 85 M1 4 3N A TRNS 471598 1 N L FLYWHEEL 85 M1 4 3N M TRNS 3991469 1 N L FLYWHEEL PGO 19 29 I 86 89 M1 4 32 M TRNS 10105832 1 N L FLYWHEEL PGO 27 59 86 88 M1 4 32 A TRNS 14088761 1 72 00 FLYWHEEL PGO 27 59 0 669 BOLT PIN Engine Flywheel I V 85 89 M1 4 3N 2 M TRNS 839756 I 6 43 BOLT FLYWHEEL 7 16 20X 97 300M 86 89 M1 4 32 A TRNS 14088764 6 70 BOLT FLYWHEEL 00 685 PGO 35 48 87 89 M1 4 32 M TRNS 14088645 6 75 BOLT FLYWHEEL 4 A L 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52M 1 1 0 626 0 669 0 16 I 1 91