I'm sure at your terminal you may be receiving downgraded 800000 series Volvo's for the city. They have been taking the side farings off and renumbering them. My question to all is at your location, have your shop or vendor's been removing the stop on the frame rail to allow you to slide the fifth wheel back another hole? If you pull a 53 as a single axle, you can hit the back of the cab, and of course receive a chargable. We have been told to jiff up if we pull a 53. Some of the conversions have the stop removed.