66 67 Pass 250 exc A I R 3912255 1 N L ADAPTER UNIT 65 66 Pass 396 427 3889657 1 N L ADAPTER UNIT Note 3 NOTE 3 When using with Sp H Per engine order 1 3873847 pulley and discard 1 3874416 and 1 3860457 pulley 66 Chevelle 6 cyl 3889658 1 N L ADAPTER UNIT 66 67 Chevelle 396 3912243 1 N L ADAPTER UNIT 66 67 Chevelle 283 327 3912203 1 N L ADAPTER UNIT 67 Chevelle Chevy 6 cyl 3912239 1 N L ADAPTER UNIT supplementary 67 Chevelle 6 cyl 3912185 1 N L ADAPTER UNIT Note 4 NOTE 4 Order unit 3912239 for installation on vehicles with A I R 66 67 Chevy exc 8 cyl 3912349 1 N L ADAPTER UNIT Note 5 NOTE 5 When used on L4 engine also order 1 3793680 Brace also order unit 3912239 for installation on vehicles with A l R 66 67 Chevy 8 cyl 3912351 1 N L ADAPTER UNIT 67 Camaro 327 350 3912347 1 N L ADAPTER UNIT Note 6 NOTE 6 When using thisunit on 302 engine models it will be necessary to order 1 3916385 crankshaft pulley and 1 3671258 hyd steering pump belt 67 Camaro 230 250 3912343 I N L ADAPTER UNIT Note 7 NOTE 7 Also order unit 3912345 for installation on vehicles with A l R 67 Camaro 230 250 3912345 I N L ADAPTER UNIT supplementary 67 Pass 396 427 3912341 1 N L ADAPTER UNIT 67 Pass w A l R 250 3912237 1 N L ADAPTER UNIT 68 Pass 6 cyl exc P G C A C 3930721 1 N L ADAPTER UNIT 68 Pass w P G 6 cyl exc C A C 3930722 1 N L ADAPTER UNIT 68 Pass 8 cyl exc 396 427 3930723 I N L ADAPTER UNIT 68 Pass 396 427 3930724 1 N L ADAPTER UNIT 68 Chevelle w P G 6 cyl exc C A C 3930718 1 N L ADAPTER UNIT 68 Chevelle 6 cyl exc P G C A C 3930717 1 N L ADAPTER UNIT 68 Chevelle 396 exc C A C 3930720 1 N L ADAPTER UNIT Note 8 NOTE 8 When used on 396 Spec Hi Perf order pulleys 3873847 and 3869978 68 Chevy Camaro exc 8 cyl C A C P G 3930725 1 N L ADAPTER UNIT Note 9 68 Chevy Camaro w P G exc 8 cyl 3930726 1 N L ADAPTER UNIT Note 9 68 Chevy Camaro 8 cyl exc 396 3930727 1 N L ADAPTER UNIT Note 9 68 Camaro 396 3930728 1 N L ADAPTER UNIT Note 9 69 Chevelle 6 cyl exc A T 3960247 1 N L ADAPTER UNIT 69 Chevelle w A T 6 cyl 3960248 1 N L ADAPTER UNIT 69 Chevelle 8 cyl exc 396 3960249 1 N l ADAPTER UNIT 69 Malibu Spt Cpe Conv 396 3960250 1 N L ADAPTER UNIT 69 Chevy 6 cyl exc Torque Drive RG 3960255 1 N L ADAPTER UNIT 69 Chevy 8 cyl exc 396 3960257 1 N L ADAPTER UNIT 69 Chevy 396 3960258 1 N L ADAPTER UNIT 69 Camaro 6 cyl exc A T 3960263 1 N L ADAPTER UNIT 69 Camaro w Torque Drive P G 6 cyl 3960264 1 N L ADAPTER UNIT 69 Camaro 8 cyl exc 396 3960265 1 N L ADAPTER UNIT 69 Camaro 396 3960266 I N l ADAPTER UNIT 69 Chevy w P G Torque Drive 6 cyl 3960256 1 N L ADAPTER UNIT 69 Biscayne Bel Air 396 427 69 Sta Wag 396 427 3960254 1 N I ADAPTER UNIT 69 Impala 6 cyl exc Sta Wag A T 3960259 1 N L ADAPTER UNIT 69 Impala w P G 6 cyl exc Sta Wag 3960260 1 N L ADAPTER UNIT 69 Impala Caprice 307 327 350 exc Sta Wag 3960261 1 N L ADAPTER UNIT 69 Impala Caprice 396 427 exc Sta Wag 3960262 1 N L ADAPTER UNIT 69 Pass w A T 250 3960252 1 N L ADAPTER UNIT 70 Pass 6 cyl exc Sta 1 Wag 3974379 1 N L ADAPTER UNIT Note 10 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 30A 6 508 6 508 6 10 REV 2 71