[pat in Santa Cruz]

I saw one with a length of 1 inch square stock bolted to the side rails, and running across the back. The bumper arms were made from car arms, but had been extended by welding in a piece to lengthen them far enough out for the right bumper placement. A pair of the longest of the three styles of cross sill brackets that hang the arms from the rear of the body on a car were hung from the square stock.