231jasons

Wish i knew........thats what ive been asking. The Toyos are great other than the pull.

BMH95

It's a function of normally moving up in size, as well as getting the Toyo's. Many likely attribute the pulling to the tires, while ignoring the size change that happened at the same time. Different tires act differently. It seems the stiffer the tire, and the harder the compound, the less crown affects the tracking. For example, I had Eage F1 runflats on one of my Vettes, and the crown really wasn't bad. Then I went to a soft Perelli Pzero, and the pull was BAD. You have to remember there is A LOT of weight sitting way up high over our truck tires, so the road crown makes the truck's weight shift to the side of the tire slightly where there is a crown in the road. So if the tire is a little softer, it lets the weight settle a little more to one side, while the stiffer tire will distribute the weight a little more than the softer will. Also tread pattern plays a part. It just makes a difference with the rolling resistance of the tire.

checkster

manufacturer doesnt matter. I have mickey thompson atz and they follow the crown also

mega-engr

Exactly, why not swap tires left/right and see if anything changes like all ready suggested!!!!! Simple, easy, quick, and free. I can't believe none of the shops the truck/tires have been too how many times haven't tried this. I've had more than one vehicle with different manufacturer of tires do this. I was amazed to see the pull go with the side the tires were swapped to.

Still hard for me to believe, but one tire dealer kept tweaking the alignment and everything but the tires!!! After not being able to resolve, he said, let me get you a new tire for the front. It fixed it! However, he got me one size too small a tire!!! The alignment was jacked up from him trying to fix the tire issue that a smaller tire actually drove great with no pull!

I had him put the old correct size tire on and got my money back from alignment and got the heck out of that place...

231jasons

Mine dont follow the crown they pull to the right. Not violent, but will change lanes in less than 100 feet. Ive driven on flat open P.lot, down the middle of the road, on the wrong side of the road. It does not matter....its the tries. Ive swapped left to right, front to back nothing changes it other than switching to diff tire. i know size has a little to do with it but switching from 295 toyo to a 285 goodyear is very little overall size difference.

The Toyos are harded than the goodyear. Also ive tried many diff air pressures from 30-80psi.....no diff the right pull is there.

mega-engr

Maybe your brake caliper is dragging on that side?

SRMX

So, what's the cost to do the offset balljoint?

231jasons

No if it were a caliper it would not fix its self when i changed the tires back to the 285's. (See post 44)

one off set ball joint is like $380 installed..

adamkn

I have an idea that might help....and if it doesnt, well it's free, so no loss.

Try lowering the air pressure in the driver's side front tire, so that it's about 5 psi less than passenger side. The intention is to increase the rolling resistance in your driver side tire. As BMH95 stated above, when you're driving on a crown, more weight is shifted to the passenger side tire, which will increase the rolling resistance of that tire - and result in the pull. So if you can find a way to increase the resistance of the driver side tire, you can probably balance things out. I'm not sure what the magic number is - a 5psi differential is a guess, it might take even more than that though.

I think I mentioned this before, but I also suggest using the max tire pressure for the front tires (per what the sidewall says) - this is the best way to reduce rolling resistance and reduce the pull (and also to help tires last longer, get better fuel mileage, reduce risk of blowout, etc).

torquefan

I can't believe nobody's mentioned anything about the REAR of the truck yet. If the rear axle has a thrust angle, it is not running square to the frame or the road, and it will push the truck to one side or the other. It's quite common on our trucks, as there is a certain amount of slop between the locating pins on the leaf springs, and the holes in the spring pads. Then, our lift blocks have the same amount of slop again. This is actually the most common cause that I see of pulls on our trucks. Most alignment machines today will display thrust angle, but I believe many technicians don't bother to look at it because they just focus on the front of a RWD vehicle.

231jasons

Thats a good thought, ill have to remember to have that checked next time im getting an allig......But i dont think thats the case here because as i said the pull is gone when i switch the tires back to the stockers or the goodyears. (i still had them mounted up in the shed and have switched them several times)

JONNY06DIEZAL

Yea, same here, steers straight with stock tires. And my rear was checked and is straight as well, still pulls to the right..

Dwitt0187

the day i put my toyo mt's on they drifted a little but now that i have like 2000 miles on them the run pretty straight i dont know it that helps at all

Mlucas

I'm no mechanic, but I thought when you had your vehicle alligned, they put sensors on the rear rims to give a datum point to start from-to ensure that the front tires were tracking the same as the rear. I had an old 2wd chevy go for an alignment years ago-thats what they did.

I've also seen a truck that was obviously in an accident at one time in its life-the truck drove on an angle. The rear axle was significantly out of place & the front tires looked to be aligned with them. The guy driving wasn't "grasping the wheel for dear life" but was casually driving down the hiway.

Hintz

Was this for just Toyo's M/T's or the M/t's and A/T's as well?