If you repalce the Diff with the beam then there is no problem. I have a scorpio diff and beam in mine.. had to change the arms out though because they push the wheels out another inch or two on each side.
originaly I had the smaller rear end with drums. swapped that for a rear end from a wagon (lower gears, and disc brakes). now its got the scorpio rear in it. Later I plan on swapping in a cos24v rear end.
From what I know its the arms that get bent and the bushings that get damaged.
TF