Forum Discussion

svt440's avatar
svt440
Explorer
May 30, 2016

Major Sway Problems! Any ideas!?

Hey everyone, I'm new here! Hope you all had a nice weekend. I just got back from a 6 hour drive to Lake Cumberland, and ran into some pretty sketchy situations while driving.

I have a 6,100lb travel trailer (Keystone Sprinter) that is 25' in length. Trailer was dry with the exception of some clothing and food/drinks. When it was all loaded up, it was easily less than 7,000lbs.

My truck is a 2003 Silverado 2500HD with the 6.6l Duramax. Short bed, extended cab, and has a tow capacity of 12,000lbs. I also am equipped with the "Curt TruTrack Weight Distribution System w/ Sway Control - Trunnion - 10,000 lbs GTW, 1,000 lbs TW".

With this setup, I wouldn't expect many problems with sway, but the moment I drove any faster than 65mph, it got a little out of hand.

On the way down I almost put the truck in the median of the free way because it got to swaying and I almost didn't hold on to it. I just had new E-Rated tires put on and noticed a lot of sidewall roll when the truck was pushed side to side, so I stopped on my way to Cumberland and had all brand new tires put on, (BF Goodrich, also an E-Rated tire), and they have 3ply sidewalls rather than 2-ply. This helped a little, (maybe gained 5mph without sway), and allowed me to run right at 64-65mph and would then sway as I got closer to 70mph. I got my doors blown off my travel trailers all day today. One was even a half ton pulling a 29' travel trailer that put the hurts on me!

I then noticed it didn't sway hardly at all at 65-68mph with less fuel, and as soon as a put a full tank in it, it was a little more sketchy. But even at that rate you're talking a few hundred pounds on a truck thats 5,000+ lbs below its rated tow capacity. I'm not even close to the limit and it is scary to drive! Any thoughts?

Thanks in advance everyone!!
  • Yes rear kitchen will have poor weight distribution, too much behind the axes.

    I've seen a couple where the fresh tank was further ahead to help with balance.
  • coolmom42 wrote:
    Agree with
    1) SLOW DOWN
    2) increase tongue weight
    3) check all the tire pressures


    all thee above
  • Agree with
    1) SLOW DOWN
    2) increase tongue weight
    3) check all the tire pressures
  • You need to slow down. Towing at 70 MPH can start to make most trailers unstable. Also, I think you will find most trailer tires can start to disintegrate at speeds above 65 MPH as they are not rated for anything faster.
  • Sure sounds like a tongue weight issue or a poorly set up WD hitch.
  • I have the RKS, so yes, rear kitchen. I take it that tends to be heavier in the rear than a bunk house or other plans?
  • I agree with the tongue weight comments. Which floor plan do you have? Rear kitchen? Where are your tanks locates? Tire tred wear on tt look ok? Air pressure good on all 8 tires? (TV and tt)
  • check tongue/hitch weight, you have plenty left. I bet you are only about 700lbs.
    I took a test ride and kept adding weight, finally worked ok.
    also in CA we are restricted to 55. I cant imagine 70mph. would scare me
    also went with equalizer 4 point hitch.

    you will get it ok
  • You need to load much more weight in the front of the trailer to increase your tongue weight.

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,115 PostsLatest Activity: Feb 27, 2025