Rubbing
#11
Senior almost
#12
Senior Member
#13
Senior almost
I need some help, I have made the investment, spent 1300. plus on a set of 295/60R20 Nitto Terra Grapplers. When I go hard left the right tire rubs hard on the upper control arm. So hard it has damaged the boot on the ball joint. Another poster Naasty, runs 295/60R20 Nitto Trail Grapplers and has no robbing at all. I thought I would be great with the Terra's because his Trails actually have tread on the side, I would think they would be more prone to rub.
Do I have an alignment problem? Possibly causing the top of the tire to be closer to the control arm?
I have a 2" AS level and the rims are stock.
I duplicated this post in the tire and wheel thread because I'm desperate for an answer.
Naasty, can you chime in?
Do I have an alignment problem? Possibly causing the top of the tire to be closer to the control arm?
I have a 2" AS level and the rims are stock.
I duplicated this post in the tire and wheel thread because I'm desperate for an answer.
Naasty, can you chime in?
Could be a camber adjustment if the tire is leaning to far in, but not likely on a FORD..
I looked up toe adjustment on the net so here it is:
In automotive engineering, toe, also known as tracking,[1] is the symmetric angle that each wheel makes with the longitudinal axis of the vehicle, as a function of static geometry, and kinematic and compliant effects. This can be contrasted with steer, which is the antisymmetric angle, i.e. both wheels point to the left or right, in parallel (roughly). Positive toe, or toe in, is the front of the wheel pointing in towards the centreline of the vehicle. Negative toe, or toe out, is the front of the wheel pointing away from the centreline of the vehicle. Toe can be measured in linear units, at the front of the tire, or as an angular deflection.
In a rear wheel drive car, increased front toe in provides greater straight-line stability at the cost of some sluggishness of turning response, as well as a little more tire wear as they are now driving a bit sideways. On front wheel drive cars, the situation is more complex.
Toe is always adjustable in production automobiles, even though caster angle and camber angle are often not adjustable. Maintenance of front end alignment, which used to involve all three adjustments, currently involves only setting the toe; in most cases, even for a car in which caster or camber are adjustable, only the toe will need adjustment.
One related concept is that the proper toe for straight line travel of a vehicle will not be correct while turning, since the inside wheel must travel around a smaller radius than the outside wheel; to compensate for this, the steering linkage typically conforms more or less to Ackermann steering geometry, modified to suit the characteristics of the individual vehicle..
I dont know if this helps, but it is a shot...
Last edited by 2010FX4F150GILROY; 06-26-2011 at 02:34 PM.
#14
Senior Member
Thread Starter
My wheels are 20x8.5 w/+44 offset.
I just went out and pulled the tire off, the angle of the ball joint is horrible. I wonder if the ball joint boot was messed up by the leveling kit. Has anyone ever heard of that problem?
The rubbing starts right before full lock and is on both sides. I'm stressing pretty hard about this whole deal now.
I'm thinking about the possibility of the guys who installed the leveling kit not noticing the AS kit having a left and right side spacer, they are offset in different directions.
I just went out and pulled the tire off, the angle of the ball joint is horrible. I wonder if the ball joint boot was messed up by the leveling kit. Has anyone ever heard of that problem?
The rubbing starts right before full lock and is on both sides. I'm stressing pretty hard about this whole deal now.
I'm thinking about the possibility of the guys who installed the leveling kit not noticing the AS kit having a left and right side spacer, they are offset in different directions.
#15
Senior Member
I don't know what the backspacing/offset is on my wheels. I only know they are 20x8.5. I may have them off the truck next weekend, if I get motivated enough to paint my calipers.
#16
Senior almost
A shot in the dark Nasty do you know what manfacture your wheels are?
I am guessing they are about 25mm offset or close to it.... That would account for the rub... Just looking at my truck for comparison....
I am guessing they are about 25mm offset or close to it.... That would account for the rub... Just looking at my truck for comparison....
#17
Senior Member
Thread Starter
#18
Senior almost
If you can take your tires and wheels off the truck we can actually do a comparison measurement with a straight edge and a ruler if you guys want to take the time... One tire off wiil give us all teh info we need... if you guys want too.. I know it is a lot of work sorry..
#19
Senior Member
Thread Starter
Those tires are huge on your truck....what is your offset?