Increase castor vs body mount chop

Vrrooom

Vrrooom

New member
I got my lift on and new tires on new rims. The whole setup looks great and rides awesome. Moving forward I have no rubbing at all, but in reverse it would rub the front and back in 80% to full lock. I moved the fender liner forward and now there's plenty of room there. The rear runs on the body. This is only in reverse which is a little annoying but either way I want to fix it. I know one variable for the rubbing is my rim choice with the offset, but I like it and I'm not swapping out. The other two options are body mount chop or possibly adjusting more caster in. An alignment is expensive and before going that route to "see what happens" I wanted some opinions. I would imagine the stock adjustment will allow for another degree of caster. Any idea on how much that would move the wheel forward to get rid of the rub?
 
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What are your wheel and tire specs? Lifted? I just did the icon stage 1 kit set at about 2.5" with 285/70/17s on 17x9 et-6. Using stock UCAs I was able to get close to factory caster. It pushed the tires away from the body mount sufficiently. I did the liner mod and then had to trim the under side of the fender about 3/4-1". I used a dremel and then sanded it. Looks fantastic and no rubbing at all.
 
P7M89MM said:
What are your wheel and tire specs? Lifted? I just did the icon stage 1 kit set at about 2.5" with 285/70/17s on 17x9 et-6. Using stock UCAs I was able to get close to factory caster. It pushed the tires away from the body mount sufficiently. I did the liner mod and then had to trim the under side of the fender about 3/4-1". I used a dremel and then sanded it. Looks fantastic and no rubbing at all.
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My setup is almost identical in lift and tire specs- just a different route of doing it - stock coils w/ Bilsteins adjusted to 2.5" with 285/70/17 on 17x9 et-6. I have LR UCAs that were adjusted to +4* before installing them. My total caster is at 5.7* but I assume by setting the UCA to the +4 setting, the tilt is on the top side which doesn't help with moving the tires forward. I have a hunch that by adjusting them by the factory settings, it'll move the tires forward. From what you're saying, it seems that this is probably true.
 
Vrrooom said:
My setup is almost identical in lift and tire specs- just a different route of doing it - stock coils w/ Bilsteins adjusted to 2.5" with 285/70/17 on 17x9 et-6. I have LR UCAs that were adjusted to +4* before installing them. My total caster is at 5.7* but I assume by setting the UCA to the +4 setting, the tilt is on the top side which doesn't help with moving the tires forward. I have a hunch that by adjusting them by the factory settings, it'll move the tires forward. From what you're saying, it seems that this is probably true.
Click to expand...


I'll try to find my alignment spec'd and post them.
 
I lost my specs from the shop but just called and got them. My caster is at +3 with no body mount rub. I mentioned my fender trimming above.
 
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