Tape a large piece of cardboard to the floor under the brake hub and plumb bob all the key points onto it. The leaf spring line, wheel well lip, hub face, etc. Then you can easily measure all the opening you have available and the backspace that will work.

I have 10" Cragars with 28x12 MTs in the wheel wells of my Cuda.

P.S. I have a '66 B body 8 3/4 in the car.

Last edited by DaveRS23; 03/22/14 08:47 PM.
Master, again and still