68 390 Fairlane, Mustang (2v_4v)-ST-w_or_wo/PS

69 390 Ford, Fairlane-GT, Mustang-GT -w_or_wo/PS-(exc/std_alt_or_AC)

70 390 Ford w_or_wo/PS, wo/AC

71 390 Ford(PC)-w/55_or_65amp

68 427 Spec. Ford, Mustang (4v)-w_or_wo/PS

68 428 Ford, PC (ST)w_or_wo/PS

68 428CJ Fairlane, Mustang

69-70 428 Ford, PC, Torino, Mustang(CJ)-w_or_wo/PS(exc AC)

3 grooves

for dual alt belts

6 21/32" dia outer

6 5/32" dia inner

Inner pulley belt 3/8"

C8AZ-6A312-D