Gaslands - Truck Tank & Chassis, Spinning Wheels
This includes a tank from stevenweathers (thing:2998797); and a chassis from scott (thing:5441621).
I restructured the wheels with a simple bearing and extended the axle to hold it on. Slight lip on the axle, the lip might need sanded down slightly to get the bearing and wheel on. Wheel prints with bearing fitted inside, probably no supports needed for the wheels, but for test print I did supports on the plate only.
I added a connector so this can attach nicely to any Hot Wheels engine from the Rapid Transport line. My specific freight engine is much more recent, the Loco Motorin; to which this will attach after printing.