Apparently the state (PA) is sending info out to inspection stations and such of a new law they are trying to pass. They say there are too many accidents involving rear tire blow outs while towing a trailer. So they are pushing a law that any trailer with 2 or more axles must be pulled by a dually. I guess they are going with the # of axles instead of weight for ease of enforcement. I have heard this now from 2 different stations and was still skeptical on them being able to do it. Anyone else know anybody that has got this info or heard anything about?