2021 Gladiator (no mods) highway steering instability

[jeepit]

Jeeps are brick, not an aero dynamic at all, its a Jeep thing, you are not gonna get this with aero dynamic mini vans and prius.
Its not too bad driving in normal day.
But weather condition really affects driving more so on jeeps,
JL the closest one to JTs you can find threads about this issue a lot, i have experienced JLR JTR and JTM being pushed with wimp of wind especially in 2 lane highway with high winds and when 18-wheels goes pass you on the opposite lane @70mph you can feel the hood vibrate and about to flip on you.

On my JT Mojave, i still have old steering box, and i have 2.5 lift so it is obvious to feel the wind, but with reasonable tire psi, longer lower control arms sturdier track bar helps, i am still waiting for new black steering box from dealer under TSB. That should make things better.

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[Rubiwoo]

what steering box do you have? I thought all 2021 models would have the steel box? If its black, its steel. If its silverish, its aluminum. Tire pressure also plays a role.

 

[AZCooWhip]

I'm also thinking that your tire pressure may be the culprit here. I run 39 psi, and it does wander a bit, but I think it's gonna give better tire life and gas mileage.

Again...37s x 13.5s here running at 30-32 and getting 18mpgs. Coming back from Moab I averaged just a smidge over 18 on my first half tank out of town At those pressures. That is with the hills and mountains between UT and AZ.

Gladis could be a real freak ??

 

[cshilale]

Jeeps are brick, not an aero dynamic at all, its a Jeep thing.
Its not too bad driving in normal day.
But weather condition really affects driving more so on jeeps,
JL the closest one to JTs you can find threads about this issue a lot, i have experienced JLR JTR and JTM being pushed with wimp of wind especially in 2 lane highway with high winds and when 18-wheels goes pass you on the opposite lane @70mph you can feel the hood vibrate and about to flip on you.

On my JT Mojave, i still have old steering box, and i have 2.5 lift so it is obvious to feel the wind, but with reasonable tire psi, longer lower control arms sturdier track bar helps, i am still waiting for new black steering box from dealer under TSB. That should make things better.

Ill follow up on this post on Friday after I get the dealership to look it over. I will also check my tire pressure as some have mentioned that.

 

[Boomeribe]

My 21 Mojave was really wandering in the wind. I recently lowered the tire psi to 33 and installed a Fox 2.0 steering stabilizer. Tightened the steering up quite well, still has some movement in the wind, but doesn't over control like it used to.

 

[cshilale]

My 21 Mojave was really wandering in the wind. I recently lowered the tire psi to 33 and installed a Fox 2.0 steering stabilizer. Tightened the steering up quite well, still has some movement in the wind, but doesn't over control like it used to.

I took 3 trips (2 hour highway time) in windy conditions and it was scary at times and I am not a driver that get intimidated by road conditions. Sweaty palms....not fun. I'll check tire pressure

 

[BAT]

My 21 Mojave was really wandering in the wind. I recently lowered the tire psi to 33 and installed a Fox 2.0 steering stabilizer. Tightened the steering up quite well, still has some movement in the wind, but doesn't over control like it used to.

Thinking of putting an upgraded steering stabilizer on mine to see if it would help. I just don't know if I want to do the upgraded steering box and they end up doing a crappy job which gives me worse

 

[cshilale]

Thinking of putting an upgraded steering stabilizer on mine to see if it would help. I just don't know if I want to do the upgraded steering box and they end up doing a crappy job which gives me worse

I know Synergy Manufacturing makes a track bar shaft brace that i think fixes the issue, but i will need to research that a little more. Check it out!

 

[BAT]

I know Synergy Manufacturing makes a track bar shaft brace that i think fixes the issue, but i will need to research that a little more. Check it out!

Gonna look at the steering stabalizer first to see if that does the trick if not then I will let them change the box out. Just worried if trust the dealership to do a good job on the box swap.

 

[RavensEyeOffroad]

White knuckle experience - lol

 

[Jaxmax]

Jatdebe, your description is death wobble, my work truck is an F-250 king of the death wobble issues and finally fixed by dealer by replacing drag link and tie rod. I have 108,000 on my 2017 F-250 and problem started at 45,000 on original tires, three more stabilizers put on by the dealer problem went away with new tires at 76,000, came back at about 100,000 and got much worse, called owners of my company, said I’m done, drove to dealer top Mechcanic checked it out replaced oarts better then new. Typically it would happen above 60 MPH shake truck violently while you try and hold wheel hitting brakes makes it worse have to coast down to about 30-35 then good to go again. It is always after hitting a bump in road or bump at bridge. I have lived with it for three years. Covid helped as on a teams meetings with owners I had an event while talking, I got quiet and the noise is loud enough for people to call out if I was ok, I just resumed talking after event said “death wobble” and continued talking , president called and said what the hell was that! Your problem is not really the same as the wandering, get a different shop to check it! ....Jack

 

[USMC32GTR]

My 2021 Rubicon was the same and now with 4500 miles on the tires it isn’t as noticeable. I’m starting to think it’s these tires.

 

[Ohio JKU]

Just another data point, 140k on my jku with the Goodyear wranglers, then copper st maxx.... my 2021 jt (with steel steering gear) Willys with the bf Goodrich mt running 36/7 psi is much more stable in wind and on the highway. For what it’s worth.

 

[Digster]

I have an 80th Anniversary (basically an Overland with cloth seats) and it definitely “wanders” at highway speeds, even without wind - I like the truck, but only have a local commute - I would not want to drive it on any lengthy road trips.

 

[BAT]

White knuckle experience - lol

That is how my wife describes driving the truck one the freeway or at highway higher speeds. She won't drive it anymore other than just local city.

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