we have a WPF40RLS with the tail wheels. while traveling into Kentucky for some wheeling, we went thru several small mountain town with some very narrow and steep roads with less than flat gentle intersections. on several occasions we heard the tail wheels drag, once VERY loudly.... when i was setting up at the camp ground i noticed my tail support jack was sitting at a funny angle. the tail wheel was also at an odd angle. after further inspection i saw why. the frame rail was twisted at the tail wheel mounting point. i will not ever have a trailer with out the tail wheels for this reason. however, once i get back to Michigan and have access to a fab shop, i will be removing these rigid mount wheels and installing some extreme duty swivel caster style wheels that bolt on and are thoroughly gusseted to prevent further frame damage.
2012 Ram 3500 DRW G56