No wonder they use to tear the fifth wheel hitch of prime movers with those old single axel trailers ,look at the over hang behind the trailer axel, lucky he was only grossing about 12 ton ,never towed a single axel combination or had a single drive prime mover ,but they would have been easy to push around in reverse no scrubbing of the tyres, but they did it tough in those old cab over trucks with no creature comfits.