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peoples1234's avatar
peoples1234
Explorer
Dec 30, 2016

Expedition EL - LT tires

I have a Expedition EL that I am using to pull my travel trailer. While I know that the trailer is maxing out the Expedition, it is what I have and it isn't going anywhere for a few years. Nevertheless, it actually pulls great. I know it is back there, but no waggle and it usually very stable. That is until we had some great weather here in NC for December and so off we went.

Basics:

Expedition EL, ecoboost
TT - 7900 lbs, 950 tongue, 36ft
Blue OX sway pro WD hitch

Again normally tows great. However this past trip, it was very windy. It is normally pretty windy in eastern NC, but this was sustained winds of 20-25, gusts to 35. The trailer and truck was all over the place, I could barely maintain 50 at times.

The trailer wasn't swaying so much as I was having to put a lot of input into the steering to offset the wind, and then it would either gust or change direction suddenly causing the input to be too much or in the wrong direction. Basically, side to side stability sucked. But the truck and trailer moved together for the most part, so I feel that the blue ox was doing its job.

So my question is, would LT tires help with this problem? I have the factory P tires on there aired up to max pressure (50 lbs). I have heard that P tires feel like marshmallows when towing, and I'd have to agree based on my last tow. So if an E rated LT tire like the LTX would solve this problem, I won't hesitate to install them.

Basically, is there a drastic difference between a P and LT.

If there is no hope, I guess I'd like to know that as well. Thanks.
  • Like Terryallen said slow down in strong crosswinds. Remember your pulling a giant billboard for the wind to catch. LT tires would be a good upgrade, stock tires can feel like your driving on Jell-O.

    As long as the truck and trailer move as one it sounds like you have it set up correctly.

    We're use to the wind in Kansas and it can blow strong enough to move the vehicle around without a RV.
  • Yes stiffer side walls will help. but a 25 mph cross wind gust WILL move just about any trailer. It moved the 18 wheeler as well. so don't get excited just because a strong wind gust wiggled your TT. Slow down, and that is AFTER you put on stronger tires. Which I do recommend. My tires are rated to 2700lb, and they steady the TT greatly. but the wind will still move it around
  • peoples1234 wrote:

    So my question is, would LT tires help with this problem? I have the factory P tires on there aired up to max pressure (50 lbs).
    .
    .
    .
    Basically, is there a drastic difference between a P and LT.

    Yes ! Stiffer sidewalls and heavier load rating. I would look for tires with >116T load rating (Michelin LTX). This is what is on my daughter's 2012 Expedition.

    Higher profile (65-75 series) tires will also have stiffer sidewalls.

    Do you have the factory HD trailer tow option ? You can always add the HD radiator and extra transmission cooler. Good piece of mind.
  • Just to clarify in case this seems to stupid of a question, I have towed with a F350 which obviously had LT tires, but I don't know how much that was the truck or the tires. So without going out and spending $1k on tires to try and see if there is improvement, I was look for someone to say that they switched and it was the best thing they ever did, or the opposite.