I have a 2013 Ext Cab Chevy Diesel 2500HD and a 2014 Cougar 28SGS with Resse Hitch that I just brought home this weekend. The truck on both cement and asphalt is porpoising to the point it was making...
granted in th epic, things look to be pointing up hill, but the nose of the trailer also appears to be a skoosh high. A bit of weight in the front should lower it hooked up. Or if it is easy to somehow raise the trailer axels should also help the situation if adding the weight etc in the front does not.
Wieghing it will help. Also look for DOT scales along the freeways that are not open.
Marty
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