Okay guys, here's the question. I have a rearend out of a 76 Tbird with discs brakes. I've located drilled and slotted rotors in the 11.5 "Stock" Diameter and the 5 on 5 bolt pattern. Does anyone know of a rear disc rotor that is the OEM diameter of 11.5, that also is the axle shaft as thew rotor is put onto the axle that is in a 5 on 4 3/4 or 4 1/2 bolt pattern?

The wheels that I'm considering dont offer as much backspacing on the 5 on 5 bolt pattern, HOWEVER they do offer 1 additional inch in the smaller bolt patterns.

As a last resort, for a drag racing application of a procharged car, how safe is redrilling 5 on 5 to a 5 on 4 3/4 pattern?

(If I purchase the drilled and slotted 5 on 5 OEM style and redrill them to a axle pattern of 4 3/4 but the ford 5 on 5 mounting holediameter which fits over the axle, thus I'll be able to use a deeper backspacing wheel. I plan to use the OEM caliper mounting brackets and caliper.)

Any responses from experts please reply to Crzyhotrod@aol.com