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Old 10-11-2006, 01:25 PM   #1
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Question Front End Alignment

I know when lifting our vehicles it throws a few things out of wack. I have adjustable lower control arms both front and rear. Would adding front upper adjustable control arms help me in getting my alignment back to par? I know the lower CA's help to position your axles forward or back and the uppers help with the angle. Will the uppers allow me to change the camber to some degree?

I know I already have to get an adjustable track bar for the front. The previous owner who had the lift installed, drilled the a hole in the bracket and continued the use the factory bar, however doing this, it placed the axle abit more to the passenger side. The passenger tire sticks out about 3/4 to 1 inch farther than the driver side. I have a slight bumpsteer problem and I'm hoping to correct the problem by doing this.

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Old 10-11-2006, 02:13 PM   #2
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the uppers will just help with pinion angle, i believe. here is a link to setting up your alignment.

http://www.4x4xplor.com/alignment.html

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Old 10-11-2006, 05:26 PM   #3
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Quote:
Originally Posted by TC_X
I know when lifting our vehicles it throws a few things out of wack. I have adjustable lower control arms both front and rear. Would adding front upper adjustable control arms help me in getting my alignment back to par? I know the lower CA's help to position your axles forward or back and the uppers help with the angle. Will the uppers allow me to change the camber to some degree?

I know I already have to get an adjustable track bar for the front. The previous owner who had the lift installed, drilled the a hole in the bracket and continued the use the factory bar, however doing this, it placed the axle abit more to the passenger side. The passenger tire sticks out about 3/4 to 1 inch farther than the driver side. I have a slight bumpsteer problem and I'm hoping to correct the problem by doing this.
ya he shouldn't of drilled and used the stock track bar...heard of another dude whos mechanic did this (in another thread) and they said it was a big no-no.
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Old 10-11-2006, 07:42 PM   #4
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Hey i was jus wondering wat you need the adj front track bar for, does it hav any advantages over a bracket that just relocates it?
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Old 10-11-2006, 08:12 PM   #5
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Don't confuse camber angle for caster angle. Camber angle is the in or out tilt of the tire as viewed from the front. / \ or \ /

Caster angle is the angle of the vertical axis the wheel assembly rotates about when the steering wheel turns the wheel left or right. It can be adjusted by adjusting the length of the control arms. Insufficient caster angle can make the tire unstable like a shopping cart wheel that jitters back and forth as you push the cart. Too much caster angle makes it more difficult to turn left or right, it wants to track straight ahead.
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Old 10-12-2006, 11:10 AM   #6
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Quote:
Originally Posted by ChilliRed
Hey i was jus wondering wat you need the adj front track bar for, does it hav any advantages over a bracket that just relocates it?

Having an adjustable track bar helps place the wheels properly under the vehicle. Having drilled a hole or use another bracket to relocate it can cause other problems. Of course I am reffering to the front track bar not the back. The rear you can use a bracket for relocations for about 3 inches of lift an be fine without an adj bar, however, I believe once you get to 4 inches and up you will also need to have an adjustable track bar as well.
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Old 10-12-2006, 11:18 AM   #7
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Quote:
Originally Posted by Jerry Bransford
Don't confuse camber angle for caster angle. Camber angle is the in or out tilt of the tire as viewed from the front. / \ or \ /

Caster angle is the angle of the vertical axis the wheel assembly rotates about when the steering wheel turns the wheel left or right. It can be adjusted by adjusting the length of the control arms. Insufficient caster angle can make the tire unstable like a shopping cart wheel that jitters back and forth as you push the cart. Too much caster angle makes it more difficult to turn left or right, it wants to track straight ahead.
Thanks Jerry on correcting my thinking. How is the best way to measure (if thats that proper way of saying it) the caster angle?

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