I forgot to mention the IMCA 9 inches come with disc brakes... you need to get the gm callipers, and you can spec out any lug pattern. I spec'd mine to use 12 inch 1.25 thick rotors, and 6 on 5.5 lug pattern. You can get them almost any length. I spec'd mine to be 61 inches wheel mount to wheel mount to center 7 inch rims under my 1940 1/2 ton fenders.
I mentioned the pinion brake in my earlier post to provide an option to the parking brake callipers. It provides a completely seperate system for stopping a vehicle.
