Miles-

I bought the front and rear kits from Matt's Classic Bowties (mattsclassicbowties.com) that contained 11" rotors. When I received them, I fit them in my 14" Rally II's (disc brake wheels, there's a difference!) and they seem to fit just fine. dfbrakes looks like they sell about the same stuff for about the same price, but Matt's does not require you to assemble bearings, etc.

My $0.02.

Todd