BillPenn wrote:
Have a 2014 Dodge 2500 Crew Cab 6.7L Diesel pulling a 32’ Thor 5er (dry weight 11500). New truck pulls great with plenty of power to spare. Only one problem, if I get over about 65 mph the rear of the trailer will start to noticeably sway. Can’t feel it in the truck, but you can see it in the mirrors. If I slow to below 60 mph it will stop. I replaced my tires this year with new Good Year ST225/75R15 load range E, and have them inflated to the recommended 55psi. With the trailer hooked up it sits fairly level, maybe a little down in the front. Any suggestions on stopping this, or is it normal? Not looking to do 90 but would like to maintain the speed limit.
Do you have enough pin weight?
Might check Tire pressure, and check the alignment on the 5er.
Many will hit on you for towing 65, I can creep up on 70 real easy, but don't have the rear end wander you speak of.