TTB Suspension - Steering problems
Moderator
Joined: Jan 2001
Posts: 56,979
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From: Virginia
You can see from the printout you are out of spec on your caster and camber. Any number that is red is bad. You can see all they did was adjust the toe-in, which is very simple and easy to do.
To adjust the caster and camber on these trucks is a real pain. The upper balljoint has to be busted loose on both sides, and the eceentric has to be turned, trying to get the caster and camber in with one adjustment. And if they can't get it in, they have to buy a new eccentric and put it in to give them more adjustment. Expect to pay at least $150 for one of these alignments, and that does not include the cost of the eccentric bushings.
Some of the other guys may know more about those specs, but I am suspicious that you have changed front or rear springs, have a spacer under the front springs, or air shocks or something in the rear. Is this truck's suspension totally stock?
To adjust the caster and camber on these trucks is a real pain. The upper balljoint has to be busted loose on both sides, and the eceentric has to be turned, trying to get the caster and camber in with one adjustment. And if they can't get it in, they have to buy a new eccentric and put it in to give them more adjustment. Expect to pay at least $150 for one of these alignments, and that does not include the cost of the eccentric bushings.
Some of the other guys may know more about those specs, but I am suspicious that you have changed front or rear springs, have a spacer under the front springs, or air shocks or something in the rear. Is this truck's suspension totally stock?
Posting Guru
Joined: Apr 2011
Posts: 1,636
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From: Orlando area
It looks like there are about 2 degrees difference in the Caster between the right and left wheels. That would cause a pull to the right. Why didn't the alignment shop deal with this? You can see it is out of spec (red text color).
I would be looking for an alignment bushing to add Caster to the right wheel.
Did the alignment shop check the radius arm bushings for wear?
I would be looking for an alignment bushing to add Caster to the right wheel.
Did the alignment shop check the radius arm bushings for wear?
Logistics Pro
Joined: Jan 2001
Posts: 3,789
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From: Connecticut
I had to do this and the only way to get the ball joints to "tiit back" (forget which it is, caster or camber) was radius drop down brackets, the only way to get the tires to sit vertical were drop down axle pivot bushings....
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Joined: Jan 2001
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From: Virginia
Also if it's lifted and still has the stock pitman arm, that will cause bump steer, the truck will want to dart one way or the other when you hit a dip or a bump in the road.
Logistics Pro
Joined: Dec 2003
Posts: 3,776
Likes: 862
From: Foothills of NC
If not changed yet, go ahead and do the axle pivot bushings and radius arm bushings. It made a world of difference on my truck, and neither of those bushings looked worn very much, or even had any rubber cracking.
It sure brought my caster back to where it should be.
It sure brought my caster back to where it should be.
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