Using mustang rotors for 4.5" bc

wireweld said
Why can't you use a 1.750 ID, Chicago Rawhide has these with the 2.506 OD?

Those seals will certainly work for you but if you have to fudge on the size then you fudge a little smaller rather than larger. The best thing would be to find a seal that fits precisely, but so far we haven`t had any luck.