Alignment Question (8" lift 37"tires) - Ford Powerstroke Diesel Forum
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Old 01-21-2012, 07:38 AM
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Alignment Question (8" lift 37"tires)

Ok well 2/9/10 i had an alignment done. this was right after installing the rough country 6" 4 link lift. Along with this went a set of 37/13.50/20's. and her was the results:

Front Left Front: Right
Actual Before Spec Range Actual Before Spec Range
0.2 0.2 -0.6 0.9 Camber -0.1 -0.1 -0.6 0.9
3.9 3.9 0.5 3.1 Caster 3.8 3.8 0.5 3.1
-0.07 -0.73 -0.08 0.18 Toe -0.02 0.49 -0.08 0.18
20.2 20.2 SAI 20.4 20.4
20.4 20.4 Included Angle 20.3 20.3


Front
Actual Before Spec Range
Cross Camber 0.3 0.3 -0.8 0.8
Cross Caster 0.1 0.1 -0.6 0.6
Cross SAI -0.2 -0.3
Total Toe -0.09 -0.24 -0.15 0.35



So with this info does all look ok? Now I know that the Caster needs to be fixed. In june i added 2" of lift. not at a 8" lift. now my steering wheel is about 1/8 turn to the right and the truck has a hard pull to the left. I believe i need another alignment but dont want to go there just to have hem not fix the caster. So what do i do now. Where can i get new caster shims? Any one know plces that specialize in offroad vehicles in NY. Called the local ford, told them i have a 2006 f350 and he said sure $89.95 and hen told him about the caster problem and the lift and tires and he said go find someone that specializes in that kind of stuff. Well thanks Ford. Looking for help Thanks Guys.



Ok sorry had it in a nice table but when i posted it it messed up. But i tried to color code it for you.
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Old 01-22-2012, 10:13 AM
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Ok this is a little info i found on caster.

When you turn the steering wheel, the front wheels respond by turning on a pivot attached to the suspension system. Caster is the angle of this steering pivot, measured in degrees, when viewed from the side of the vehicle. If the top of the pivot is leaning toward the rear of the car, then the caster is positive, if it is leaning toward the front, it is negative. If the caster is out of adjustment, it can cause problems in straight line tracking. If the caster is different from side to side, the vehicle will pull to the side with the less positive caster. If the caster is equal but too negative, the steering will be light and the vehicle will wander and be difficult to keep in a straight line. If the caster is equal but too positive, the steering will be heavy and the steering wheel may kick when you hit a bump. Caster has little affect on tire wear.

So for anyone that has an 8" lift kit and knows that their caster is correct can you measure your lower link that is adjustabe and tell me the distance from bolt to bolt? I think if i can adjust my lower links it will help fix caster.
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