Have a trailer bounce problem on concrete Hwy only 50-65 mph. Tow vehicle 2011 Dakota quad cab V8 magnum, trailer 1999 Bayliner Capri 18 ft fish/ski boat, only happens over concrete hwy not asphalt. It has done this when I had my 2001 Dakota SLT and with my 2011. Had 4 different brands of tires...
