Good find! All the UHauls had this secret tube welded just in front of the bumper. Mine has the original
registration, others have just found an empty tube.
UHaul was hyper paranoid about theft. You will find
UHaul ownership stamps all over the trailer from the
windows to the charge controller, the
battery case, the
furnace, the hood vent, the original
tires, the frame in numerous places. Mine even has a decal that says possession without a valid rental contract is evidence of theft!