This is the rear wheel assembly for Project Power Wheels.  Max carefully carved up the original plastic ups to use the drive hub on our new pneumatic wheels.  We cut rubber exhaust hanger mounts in half and used them as bushings (along with some 2.5" bolts in the steel rim) between the plastic and the metal rims.

Original rear rim, cut out

Rubber bushings inserted

Profile shot showing rubber bushings and mounting bolts through the rim

Hub mounted

Other side of wheel