I1m not sure if your talking about you can`t get the wheel nuts off or the brakes are locks up?
With a stong enough air impact you shouls be able to remove lugnuts ot they will break off....if not you`ll need a big enough pry bar with even a pipe on the end of it ........
as far as unlocking brakes you`ll have to deadjust brakes from adjuster on inside of brake drum ....good luck
bg
November 2005