Correction! It is not the 69-70 rotors but the 65-66 rotors (design change in mid-67 keeps me from including 67) that fit. And no, the dust caps do not interchange! The I.D. bore (only the clearence around the nut) of the stock Pantera rotor is roughly .060" larger than the Mustang, hence they do not interchange. A picture of the new rotor install can be seen here, note the tight clearence.
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