Peter, the photo of my post from last night shows the U bolts on the lifting platform at maximum rebound deflection...with the wheels in the air. So it is safe that the u-bolts do not touch the inner edge of the chassis under all conditions. MMC has even drilled a hole at this point in the inner edge for safety. But I will not need it.
The longer U-bolts are free to move because they are placed next to this metal sheet of the chassis. They do not bump anywhere.
