6 CYLINDER ENGINE 0 646 CRANKSHAFT Engine C0n t 81 ALL 4 1 1260873 1 425 00 CRANKSHAFT NOTE 1 0 648 SLINGER Engine Crankshaft 76 81 ALL 231 4 1 1193967 1 66 SL NGER CR SHF OIL 0 649 BEARING Engine Crankshaft Clutch Pilot 76 81 ALL 231 3752487 1 N L BEARING CLU PILOT 76 ALL 250 W MT 3752487 1 N L BEARING CLU PILOT 0 659 BOLT DAMPER PULLEY Engine Crankshaft 80 81 X 2 8 14001828 1 1 40 BOLT TORSIONAL DMP 76 ALL 231 1254809 1 42 75 DAMPER TORSIONAL 76 ALL 250 352153 1 69 75 DAMPER TORSIONAL W 2 GROOVES 77 ALL 231A 1257126 1 54 00 DAMPER TORSIONAL 77 ALL 231C 1254809 1 42 75 DAMPER TORSIONAL 78 ALL 231 1257126 1 54 00 DAMPER TORSIONAL 79 ALL 231A 2 25501700 1 44 75 DAMPER TORSIONAL 80 ALL 231A 25503832 1 56 00 DAMPER TORSIONAL 80 X 2 8 477234 1 44 75 DAMPER TORSIONAL 81 A B 231A 25506570 1 44 75 DAMPER TORSIONAL 81 C E 4 1 4 25523502 1 43 00 DAMPER TORSIONAL 81 X 2 8 14024247 1 44 75 DAMPER TORSIONAL 76 77 A B X 231 25522581 1 26 75 PULLEY 3 GROOVE 1 2 GROOVE G5 8 DIA 3RD GROOVE 53 4 DIA 76 77 ALL 250 14025186 1 18 40 PULLEY 1 GROOVE 63 4 DIA 76 77 H X 231 W A C EXC P S A R 1249742 1 PULLEY 3 GROOVE 1 OTR GROOVE W 5 Z DIA 2 3RD GROOVES W 6 4 DIA 77 78 A B 231A W P S EXC A C A I R 1256531 1 21 70 PULLEY 2 GROOVE 57 B DIA X 3 77 A B X 231 W A C 25522581 1 26 75 PULLEY 3 GROOVE 2 OTR GROOVES W 6 4 DIA 1 INR GROOVE W 5 Ia DIA 77 78 X 231 W P S EXC A C A I R 1256531 1 21 70 PULLEY 2 GROOVE 57 B DIA X 3 78 A 231 W A C P S 25522581 1 26 75 PULLEY 3 GROOVE 1 2 GROOVE 65 8 DIA 3RD GROOVE 5 4 DIA 78 A B 231A 2 W A C 25522581 1 26 75 PULLEY 3 GROOVE 1 2 GROOVE 65 4 DIA 3RD GROOVE 53 4 DIA 78 79 H 196 231A W A C 1249742 1 PULLEY 3 GROOVE 63 4 DIA 1ST GROOVE 5 2 DIA 2 3 RD GROOVE 6 4 DIA 78 H 196 231 EXC A C 1256531 1 21 70 PULLEY 2 GROOVE 5 S DIA X 3 78 79 X 231A W A C EXC P S 1249742 1 PULLEY 3 GROOVE 6 4 DIA 1ST GROOVE 5 2 DIA 2 3 GROOVE 6 4 DIA 78 X 231A W A C P S N41 25522581 1 26 75 PULLEY 3 GROOVE 65 a DIA 79 A B 231A 2 W A C A I R 25522581 1 26 75 PULLEY CR SHF 3 GROOVES 65 4 DIA 79 A B 231A 2 W A C A I R 25522581 1 26 75 PULLEY 3 GROOVE 1 2 GROOVE 65 a DIA 3RD GROOVE 53 4 DIA 79 80 H 231A EXC A C 1256531 1 21 70 PULLEY 2 GROOVE 57 B DIA X 3 79 X 231A 25522581 1 26 75 PULLEY CR SHF 3 GROOVE 65 B DIA 79 X 231A 25522581 1 26 75 PULLEY 3 GROOVE 1 2 GROOVE 65 8 DIA 3RD GROOVE 5 4 DIA 79 X 231A EXC A I R 1249742 1 PULLEY CR SHF 3 GROOVES 170 72 MM 80 A 231A W CLOSE LOOP EXC A C 1249742 1 PULLEY CR SHF 3 GROOVE 6 4 DIA 80 A B 231 25522581 1 26 75 PULLEY CR SHF 3 GROOVE 65 E DIA 80 H 231A 1249742 1 PULLEY CR SHF 3 GROOVE 63 4 DIA 80 81 X 2 8 EXC A C P S 14001809 1 21 05 PULLEY CR SHF 1 GROOVE 172 32MM 80 81 X 2 8 W A C P S 14025544 1 30 75 PULLEY CR SHF 3 GROOVES 172 32MM 81 A B C 231A 25522581 1 26 75 PULLEY CR SHF 3 GROOVE 65 B DIA 81 B C E 4 1 4 25522581 1 26 75 PULLEY CR SHF 3 GROOVES 65 E DIA 0 662 BOLT KEY WASHER Engine Crankshaft Balancer 78 79 ALL 231 271629 1 2 75 BOLT 3 4 16 76 81 ALL 231 1352537 1 43 KEY BAL TO CR SHF 0 728 81 ALL 4 1 4 1352537 1 43 KEY BAL TO CR SHF 0 728 76 78 ALL 231 1231966 1 1 50 WASHER 1 gz X z gz 79 81 ALL 231 4 1 25525918 1 2 60 WASHER BAL TO CR SHF 4 X 1 46 0 666 FLYWHEEL Engine Crankshaft 76 ALL 250 W A T 340296 1 58 25 FLYWHEEL i 1987 GENERAL MOTORS SERVICE PARTS 0PERAT ONS OLDSMOB LE 31 i 0 646 0 666 0 22 REV 7 87