Porpoising
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...
Forum Discussion
There are rubber isolater and air ride pinboxes that will fix 90+% of that, many people swear by airbags on the back of the truck. I would start by putting 300-500 lbs in the front of the trailer, and go for a test drive - see if it is better or worse.
