Spooler

My truck is a 2wd. Yes, air pressure difference will also cause a pull. It is natural to have a slight pull to the right due to the crown on the road. If you try to adjust it out you normally get an ill handling vehicle from my experience. If I ever have an alignment guy saying he adjusted for the crown in the road I know he has no clue. This happened to me once. Drove the car on a 2 hr trip and it was terrible. When I got where I was going I had the alignment done again by a competent tech.

THURENfab.

I've found a big issue to be the rear axle alignment. If you take some measurements from the rear axle tube, to the front control arm bolt(at frame), I've found a few trucks with the rear wheelbase about 3/16" off. Mine included...

The rear axle does play a HUGE part in steering pulls quite often..

Think how sensitive your steering is driving fast in reverse..

You can loosen leaf/axle bolts and pull one side back, and then loosen the other side and pull forward... Usually enough slop in the bolt holes to even out the difference..

tauberson

Het Thueren, what about making the Caster measurements at least equal to one another. Is that recommended or should i just make sure a 4 wheel alignment is preformed?

THURENfab.

No don't worry about it... It's a solid axle truck, don't stress on it..



edit: ... .2 of a degree is probably just variance when they welded up the axle tubes..

tauberson

Well i gues im taking the truck to the dealer to try an figure out what is causing my tire cupping as it is still progressing after last alignment and balance.

THURENfab.

Probably too much toe in... I like em' at zero toe...

What front tire pressure are you running?

tauberson

fronts at 60psi and rear at 48 psi.
cuping is on inside of both front tires

Toe is
left
.09 was .14
right
.08 was .03

alignment was 1 month ago.

sajigore

I thought about the crown in the road but when im in the left lane and it slopes left it still pulls to the right. I will check the rear axle alignment this w/e.

Thanks for the responses...

Hairy1

Cross rotate your tires and the pull will go away......did on mine!

Dealer did it and rebalanced.......fine now.

THURENfab.

Oh the inside is cuping? Huh...

Sounds toe'd out...

sajigore

Did that too...still the same. Lowered pressure on the left tire 5 lbs. helped a little.

torquefan

Yep, like Don mentioned, that is normal variance from manufacturing. It's too bad that it wasn't the other way around to help compensate for road crown, as it will pull to the side with the least amount of positive caster.

torquefan

Not true. The proper way to align a vehicle is to offset the camber or caster slightly to compensate for road crown. If I had a vehicle that pulled to the right all the time, i would consider that an ill handling vehicle. It is quite possible to align a vehicle to handle perfectly, and also not suffer from a pull on most crowned roads. I have no doubt your alignment guy screwed something up, but it has nothing to do with adjusting for road crown. I am speaking as a licensed technician who learned from some of the best.

Spooler

If you set it up for the factory spec. no need to adjust. It should already be done. As I said no thanks for the adjusting for the crown. Before all the state troopers got so bad I would drive 100 MPH everywhere I went on the back roads. Now it is not possible. More people and cops and a little wiser I guess. So I was driving somewhat faster than the average person you could say. Today, I do the speed limit. Recon I am a gelding now.

t-boe

I just swapped my front tires around and it's cured. I think I'm going to follow Don's advice and try to align the rear axle. I just rotated them and you'd figure the back ones wouldn't cause it to pull to the right. Mine must be off.