I had a set of P245/70/17 Firestone destination AT tires on my truck for 55k miles. No issues at all, no vibrations, no shaking at any speeds.

I had a set of LT265/70/17 Cooper discoverer AT3 tires installed and at low speeds, I can see the truck kind of shaking back and forth, that goes away till you hit about 55 mph exactly which causes the bed to shake pretty bad. You can see it in the mirrors. I've gone back to the same tire shop for a second balance and it's not any better. He said two of my wheels had a wobble to them.

What do you guys think? I'm going I bring it somewhere else. I don't know how the wheels could be warped as I've owned the truck since new and have never hit anything. I just don't want to ruin these tires and I keep having to drive 150 miles from where I live in New York back to Vermont where they were installed.

It's really annoying since I didn't have this issue with my last set of tires. Other then that, I really like the cooper discoverer AT3s.

 

If all you have is bed shake, I would not worry about it. They all do it. A lot of that movement is due to the fact that there are 2 different parts of the truck that except for the frame are independent of each other. One is also cushioned, while the other is not. If you can feel vibration in the seat or steering wheel, then go get them road force balanced.

 

I understand, however, I never had the bed shake issue before these tires were installed. It gets bad just at 55 mph.

Is there a chance my steel wheels could be warped even though I've never hit anything?

I'll get the road force balance and go from there. I found a set of 2007 17" alloys with tpms from an F150, I may buy them cause it's a great deal.

 

Get the road force balance. That will tell if there is a problem with the tire, wheel, or nothing.

 

Will do! Thanks!

 

I had a hopping at 55 mph when my truck was new. The dealer where I bought the truck balanced the tires twice and could not get it balanced. Took it to s little tire shop and they balanced it perfectly.

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Went back for the third time and they did the road force balance. They found three of the brand new tires were bad and replaced them.

It was dark and I didn't look at them till I got home. They put 3 P metrics on when my tires were LT load C. Now I have to go back Friday for them to install the right tires. Not sure how they messed that up, but they just wasted 3 new tires.

 

Problem solved. But not without having yet another issue. When I brought the truck back for them to take the 3 p metric tires off and put three matching LT's on, they did that. However, the 3 new ones were load E and they should have been load C. They took those tires off and finally got it right.

Blew my mind.

 

I was wondering what would cause my tires to rub. I have a 2006 STX just put a 2.5 inch leveling kit on it and 2 inch wheel spacers, wasn't rubbing before now it is.. Does anyone know what is causing this?

 

Bradly, please start a new thread. Your issue has absolutely nothing to do with the topic.

 

Glad you got if fixed, was that in California or NY. Hard to believe that this happened at a real tire shop.

 

First post says he bought the tires in Vermont.

 

You'd figure people working at a tire shop would know what they're fooling with!

 

Sometimes, the tire just needs to be turned on the rim. break the bead, turn the tire 1/3 to 1/2 way around the rim, re-seat and rebalance. when it's on the balancer, if it doesn't run true (no wobbles), it's not right, even if it's balanced.

 

Good point, I think the term is Match Mounted. Maybe find a tire shop that uses one of those Hunter balancers?