62 69 All 4 53 5116448 1 383 39 Ident No 5116029 62 66 Ser 80 6V 53 5116449 1 389 31 ident No 5116030 62 All 409 63 Ser 80 w P T 409 exc Tilt 63 Ser 80 409 exc P T 64 65 All 409 3828477 1 129 10 ident No 3824554 63 65 Ser 50 230 3864465 1 107 00 ident No 3820618 63 66 All w P T 292 67 70 All 292 3910362 1 106 10 Note 2 NOTE 2 When using on models w P T it will be necessary to use Flywheel 3910366 6 flywheel Bolts 3910368 3 dowel Pins 3888062 65 68 All D DH478 8877367 1 431 05 65 66 All D351 2454017 1 406 80 65 67 Ser 40 50 3 53 5116447 1 348 14 66 70 All 250 exc Tilt 3876840 1 94 45 Note 1 66 Ser 50 Tilt 250 67 Ser 40 Tilt 250 3876856 1 92 00 66 70 All 366 427 3882840 1 109 80 68 All 327 3914682 1 107 50 Note 1 68 All 307 3930809 1 97 40 Note 1 69 70 Ser 40 350 3941180 1 102 00 Note 1 69 70 Ser 50 350 3941188 1 107 30 63 66 All 292 exc A T 3909427 1 131 85 CRANKSHAFT UNIT w f wheel Note 3 NOTE 3 Includes crankshaft flywheel dowel pins and flywheel bolts 56 59 All 322 3751840 1 2 40 WEIGHT UNIT baIance 0 662 Note 4 NOTE 4 Required for engine balance when installing late design pistons See Group 0 629 NOTE 1 Remove clutch pilot bearing on Automatic equipped jobs 0 648 SLINGER Crankshaft Oil 65 66 All D351 D DH478 67 69 All D DH478 8874266 1 20 front 0 649 BEARING Crankshaft Clutch Pilot 55 62 All exc 322 348 409 Diesel 63 70 All 6 cyl exc Diesel 64 68 All 283 307 69 Ser 40 350 3752487 1 95 bush type z O D x 56 62 All 8 cyl exc 265 283 62 69 Diesel exc D351 D DH478 63 70 All 8 cyl exc 283 904983 1 5 68 ball type 4 l D x 2 O D x z 65 69 All D351 D DH478 907321 1 3 03 ND 7109 2 I D x 1 2 0 D x Wu 0 659 BALANCER PULLEY HUB KEY Crankshaft and Camshaft NOTE In some cases double groove pulleys may be used in place of single groove pulleys 41 52 All 216 53 1Vz Ton 216 605203 1 15 65 cast 838863 3 width thru hub 6Vz dia Note 1 41 52 All 235 53 55 Util 235 261 1st Ser 3701930 1 15 15 weight 7V O D pulley V V Note 1 53 D D exc P S 3704338 1 15 15 weight 7V O D pulley V Note 1 55 59 All 6 cyl exc A O H B 60 62 All 6 cyl exc Air Equip P S Tilt 3714444 1 14 15 stamped T hub 7Vz dia Note 1 2 NOTE 1 When used on 1955 jobs 3723794 spacer must be used to accommodate oil slinger NOTE 2 Bolts in this assy are to be used for driving the balancer on to the crankshaft when the special driving tool is not available Remove bolts after installation 55 62 All 8 cyl exc 322 Tilt 63 65 Ser 60 w forged crankshaft 327 exc Tilt 64 65 All w nodular crankshaft 283 66 Ser 50 w nodular crankshaft 283 67 Ser 40 w nodular crankshaft 283 68 All 307 3861970 1 16 30 w o pulley hub 4 O D 56 59 All 322 1165934 1 18 58 w o pulley 58 62 All w Air Equip 261 exc Tilt 60 62 Ser 60 w P S 261 exc Tilt 62 Ser 40 thru 60 w 62 amp AC gen 3740518 1 20 45 w pulley double hub 7 dia t 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 31St 0 646 0 659 0 za REV 6 71