194 216 230 235 AND 261 ENGINE ASSEMBLIES 0 646 CRANKSHAFT t NOTE 1 When used on A T it will be necessary to remove the pilot bearing a 48 53 All 216 t 3835270 1 A ldent No 3835271 i f 54 62 Au 83 4 WDA lst Ser 3701486 1 ldent N0 3701488 Note 1 63 69 All 194 230 1 3864465 1 Note 1 0 649 BEARING Crankshaft Clutch Pilot 38 39 All 907321 1 ND 7109 u I D x 1 u 0 D x u 39 89 All 3752487 1 bush type u D x 1 sa 0 D x A 0 659 BALANCER HUB KEY PULLEY Crankshaft NOTE 1 Used with pulleys and hubs having a shallow deep keyway only Allfull depth slots take standard Woodruff key 10675 1 two short or 144542 one long in group 8 960 NOTE 2 Assemblies are solidly bolted for driving balancer onto crankshaft when special driving tool is not available Bolts must be removed after balancer is assembled to engine NOTE Crankshaft harmonic balancer is also referred to as torsional damper NOTE ln some cases double groove pulleys may be used in place of single groove pulleys 41 52 All 216 605203 1 cast 838863 3 width thru hub 6 dia Note 2 53 D D exc P S A 54 55 Comm lst Series 3704338 1 weight 7 0 D pulley V Note 2 55 Ser 3 2nd Ser A 56 62 All 83 4 WD lst Ser 3714444 1 stamped T Note 2 60 62 All w Cool Pack 3772879 1 w pulley used w units 985323 988193 62 AIl w 62 amp AC gen 83 4 WD 1st Ser w 62 amp AC gen 3740518 1 w pulley double hub 7 u dia 63 87 All 194 230 3826280 1 w pulley timing mark on frt face 30 I degree left 88 69 All 230 L 3896590 1 w 2 groove pulley 63 87 All 194 230 63 65 All 5743323 1 HUB pulley 4 dia A 65 86 All w key l long x wide h w 1 x high 3883206 A R KEY crankshaft pulley hub Note 1 65 66 All w key 1 7 long x wide x ss high 3885092 1 KEY crankshaft pulley hub Note 1 56 Ser 10 thru 30 V 8 exc D D I 60 62 Ser 10 thru 40 exc D D 63 Ser 10 thru 40 283 lst Series exc D D 3742991 1 PULLEY crankshaft A 68 All w Acc Air Cond 3790337 1 PULLEY stamped 3790337 1 groove A A 6 OD 3 holes 0 666 FLYWHEEL with Ring Gear A NOTE 1 It may be necessary to use 6 3727207 Bolts 0 669 to attach flywheel assy 55 62 Allw 10 Clutch exc A T 1 63 4 WD lst Ser w 10 Clutch 3705409 1 solid type 4 55 62 All w l 1 Clutch A 63 4 WD lst Ser w 1 1 Clutch 3789730 1 solid type 63 69 D D 194 230 exc A T 63 68 Ser 30 230 exc D D 63 69 Ser 10 20 yy H D Clutch 4 Spd 230 exc D D 3998281 1 solid type 60 62 All w P G 3781962 1 spoke type Note 1 83 89 Ser 10 201230 exc D D 4 A A r Spd A T H D Clutch 3986390 1 solid type 63 69 All w P G 194 230 3789821 1 spoke type 64 69 G 10 20 194 230 exc A T 366860 1 solid type 89 A w T H 350 230 A 3991402 1 spoke type 0 669 BOLT DOWEL Flywheel to Crankshaft 42 69 All exc A T A 839756 6 20 x 1 61 69 All w A T 3727207 6 20 x 290M steel 40 62 All V 83 4 WD lst Ser A 606535 3 DOWEL dia x u long compressor support 0 673 GEAR Flywheel Ring NOTE Ring gears with 153 teeth are only available as part of Grp O 666 flywheel asm 55 89 All 3991408 1 168 teeth 0 679 UNDERPAN BOLT COVER EXTENSION SCREW ASSY Flywheel I 54 55 Comm exc H T GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL REV 5 79 0 17 0 646 0 679