63 64 Pass 409 exc P G H Per dual 4BC 3838371 1 w 0 pulley hub 5Vz 0 D 64 Pass w Air Cond 6 cyl 3850666 1 w 0 pulley hub 6Vz 0 D 55 57 Pass 8 cyl exc C A C dual 4BC F I 58 59 Pass 8 cyl exc C A C Air S H L Cam H Per 58 Pass 3 2BC w H L Cam 1st design 59 Pass w Air S exc C A C Cool Pack 60 61 Pass 8 cyl exc C A C Cool Pack Sp H Per 409 62 Pass 8 cyl exc C A C Cool Pack 409 63 Pass 8 cyl exc 409 C A C C Deluxe Air Cond 62 amp A C Gen 64 Pass 8 cyl exc 409 Air Cond A R 3755820 1 PULLEY stamped 3755820 56 59 Pass w F I dual 4BC 3742991 1 PULLEY stamped 3742991 58 59 Pass w C A C Cool Pack Air S 8 cyl 58 59 Pass 3 2BC w H L Cam 2nd design 60 63 Pass w C A C Cool Pack 8 cyl 63 Pass w 62 amp AC gen 8 cyl exc 409 C A C Cool Pack 3747479 1 PULLEY double 6 0 D painted black stamped 3744043 58 Pass w C A C Air S Cool Pack 8 cyl 59 Pass w Air S 8 cyl exc SDL PDL 60 Pass w P S 8 cyl exc H Per 61 64 Pass w P S 8 cyl exc Sp H Per 409 63 64 Pass w C A C 409 3751232 1 PULLEY front stamped 3751232 59 60 Pass w H L Cam H Per Sp H Per 348 61 Pass w Sp H Per 348 61 64 Pass 409 exc C A C 3858533 1 PULLEY double 6 O D stamped 3766987 60 62 Pass w P S 6 cyl exc C A C Cool Pack 3774901 1 PULLEY front stamped 3774901 60 62 Pass w C A C Cool S Pack 6 cyl exc P S 3772886 1 PULLEY front stamped 3772886 single 60 62 Pass w C A C Cool Pack P S 6 cyl 3775674 1 PULLEY front stamped 3772885 double 63 64 Pass w Air Cond 6 cvl 63 Pass w 62 amp AC gen 6 cyl exc Air Cond P S 63 64 Pass w P S 6 cyl exc Air Cond 64 Pass w 62 amp AC gen 6 cyl exc Air Cond 3790337 1 PULLEY front stamped 3790337 64 Pass 6 cyl Air Cond w P S 3853104 1 PULLEY front Note 4 NOTE 4 Used with crankshaft center pulley 3853400 only for 64 models 64 Pass w Air Cond 6 cyl exc P S 64 Pass P S w Air Cond 6 cyl 3853400 1 PULLEY center 64 Pass w C A C C Deluxe Air Cond 8 cyl 3850838 1 PULLEY 72V 4 O D 64 Pass w P S 8 cyl exc 409 H Per 64 Pass w P S C A C 409 exc H Per 3851310 1 PULLEY front 60 64 Pass w forged crankshaft 283 M 62 Pass 283 3795272 1 HUB pulley or balance 4 dia NOTE 1 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 1970 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORA ION P A 30 0 659 0 659 0 18