CV Axle Angle?
#21
So I messed with cam bolt or whatever and see how they pivot the A-Arm, but I dont get it...call me dumb....but I turned them around and around and around and didn't figure it out....I lowered my T-Bars about .5'' and it helped a little...
#22
Did you notice that each a-arm has two cam bolts? When you rotate the rearward one, the rear side of the lower a-arm moves in and out. Likely wise when the front cam bolt is turned, that forward side of the lower control arm moves in and out.
If you move them together, ie, both turned with the bolts biased outwards, you have moved the a-arm out as far as it can go. Since the upper arm did not move outwards, and the lower arm did, you have caused the tire to lean inwards, or camber in.
However, you want to do more than just move both cam bolts until the tire is vertical. You want your spindles to lean rearwards kind of like the forks of a motorcycle do. So, how might you accomplish this you ask? Well you need that lower control arm to rotate forwards. That is done by turning the front cam bolt inward more than the rear. By pulling the front side of the a-arm inwards, you are rotating it in the correct direction.
So, do this.
1) Set your ride height where you like it. It sounds like you know how to adjust the torsion bars. Use a tape measure and get it dead on. Remember to roll the truck back and forth between adjustments.
2)Rotate the rear lower a-arm cam bolt all the way out. Rotate the front one half way out. This should put the tires close to vertical.
3) Set the toe with a string like shown or at this point, even by eye if you want. Just align the front tires to the rear tires. That string should be the same distance from each side of the rear tire, again use the tape measure.
At this point, your alignment is pretty close.
Re-check the ride height because poorly aligned suspension can bind and change it some when it is not binding.
Put a square next to the wheels. If they are not vertical, adjust them on the ground rolling the truck back and forth, make both wheels vertical.
Get your string and align the front tires so they are in line with the rear tires. Again, roll the truck back and forth making sure the steering wheel is centered.
Your truck is now aligned.
You'll find in the future that if you knock it out of alignment wheeling, it takes little time to quickly check which adjustment is out and fix it. It's the first time after installing a lift that takes a while to do.
Frank
If you move them together, ie, both turned with the bolts biased outwards, you have moved the a-arm out as far as it can go. Since the upper arm did not move outwards, and the lower arm did, you have caused the tire to lean inwards, or camber in.
However, you want to do more than just move both cam bolts until the tire is vertical. You want your spindles to lean rearwards kind of like the forks of a motorcycle do. So, how might you accomplish this you ask? Well you need that lower control arm to rotate forwards. That is done by turning the front cam bolt inward more than the rear. By pulling the front side of the a-arm inwards, you are rotating it in the correct direction.
So, do this.
1) Set your ride height where you like it. It sounds like you know how to adjust the torsion bars. Use a tape measure and get it dead on. Remember to roll the truck back and forth between adjustments.
2)Rotate the rear lower a-arm cam bolt all the way out. Rotate the front one half way out. This should put the tires close to vertical.
3) Set the toe with a string like shown or at this point, even by eye if you want. Just align the front tires to the rear tires. That string should be the same distance from each side of the rear tire, again use the tape measure.
At this point, your alignment is pretty close.
Re-check the ride height because poorly aligned suspension can bind and change it some when it is not binding.
Put a square next to the wheels. If they are not vertical, adjust them on the ground rolling the truck back and forth, make both wheels vertical.
Get your string and align the front tires so they are in line with the rear tires. Again, roll the truck back and forth making sure the steering wheel is centered.
Your truck is now aligned.
You'll find in the future that if you knock it out of alignment wheeling, it takes little time to quickly check which adjustment is out and fix it. It's the first time after installing a lift that takes a while to do.
Frank
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