When I put on my 20" wheels and tires over a year ago i had an alignment done. The suspension is bone stock(04Yukon Denali). When i got the truck backthe front end was down a lot! They said if it went back up it would throw off the alignment? Every time i look at the truck now it looks like i lowered the front and the *** end is to high in the air?! If i crank the torsion key bolts both the same amount to bring the front back up would that mess with the wear and tear of my tires and alignment? I would have to say the front needs to come up about one inch! Any helpful thoughts? Thanks Guy's!

 

Sounds like all your alignment shop knows how to do is adjust toe and thrust angles. When you adjust the torsion bar settings to change static ride height you also need to adjust the upper control arm connection to the frame. This will adjust the camber, there are plates that act like a cam lobe and adjust the position of rotation for the control arm in or out relative to the frame.

Any shop doing an alignment should look for this in my opinion. It may not be something that is normally done on trucks and suvs that retain stock front ride height, but for those of us who like our front ends relatively level it is mandatory to retain proper tire wear.

Tell them that when they adjust the torsion keys to level out the ride height, that they also need to adjust the Camber and Toe to compensate. If they cant figure it out after looking at it for a few minutes get a refund and run.

 

There are two ways for an alignment shop to adjust camber during an alignment with these torsion bar front suspensions. First, cranking the torsion up or down moves the bottom ball joint in or out in relation to the frame, thus affecting camber. This should only be done after all the adjustment has been used up by rotating the two cams where the upper A-arm attatches to the frame, which moves the upper ball joint in or out in relation to the frame, again, affecting camber.

To the OP, I'd just make sure your alignment shop has gone as far as they can with the upper A-arm cams before messing with the torsion bar... From your description, it sounds like they didn't even touch the upper A-arm, and did all the camber adjustment via the torsion bar, which is why it dropped so much. Seems to me you have two options, get it aligned in correct sequence or lower the rear to match. Personally, I kinda like option two!

 

What you can do is adjust the torsions yourself to bring up the front to the desired height. Then take it to have it aligned, but be sure to tell them not to mess with the torsions just to adjust caster camber and toe.

Dustin