Originally posted by staleg
According to change wheel size down I don't quite understand what you mean? Most used front wheel dimensions on traditional 33-34 Highboys are still 15" isnt it?
What I meant was if you REALLY don't think you'll ever want to change the wheel size in the future down to a 15" then go with the 12" rotors. It's just a matter of planning for the unforseen possibilities. Choosing the 12" will limit your options for a variation on the traditional look in the future, for what would likely be a nominal improvement in braking ability considering the relatively light weight of the '33-4 Ford.