As original with part number stamping C5AF-10A352-C on the pulley with 3.87 inches Outside Diameter. Correct for 1966 - 1970 as the part number is stamped on an arc on the pulley surface.
Fits:
19641/2 1965 19661967 MUSTANG (From 4/1/65), 289 HI-PO, Correct if painted black
1969 1970 Mustang Boss 302
1969 19970 Cougar Eliminator, BOSS 302
1965 Fairlane 289, 42 AMP Alaternator
1966 1967 Fairlane 427
1970 1971 Torino 429 CJ, 429 SCJ
1970 FALCON (From 1/1/70), 429 CJ, 429 SCJ
