C5AE-D

Ok65-68 352 390 Ford, Fairlane & GT, Thunderbird(w/AC. TE w_or_wo/PS)

Ok67-68 390 Thunderbird(PS)-exc/TE

Ok66-68 428 Ford, Thunderbird(wAC. TE w_or_wo/PS)

Ok67 428 Thunderbird(PS)-exc/TE

3 grooves 

Diameter : 7.687"
Overall depth : 2.48

Ford Service Part Number ID C4SZ-6A312-B