Tires rubbing
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Junior User
Joined: Feb 2013
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From: North west Fl
Tires rubbing
I have an 86 f150 4x4 with 35's. There seems to be a small body lift on it, but my tires still rub pretty bad when i turn. I was thinking that maybe I could just put some blocks on it to get the clearance I need. How hard are those to put in? Ive never done it so i am trying to get some experienced help before i mess it up too bad. Any input is appreciated. Thank you
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Junior User
Joined: Feb 2013
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From: North west Fl
Not sure honestly, I just got the truck and its at the front end shop at the moment. But when i turn it makes the whole truck jumpy until i straighten up. I will look closer at it friday when i get it back. i just figured it was the wheel well so that s why i brought up the lift
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If it's like mine, it only happens when the steering wheel is fully turned one way or the other. The simple thing is to do is make turns without turning the wheel that far.
If you want to eliminate the issue you will have to come up with some sort of steering stop or limiter so that it can only turn so far.
It isn't going to rip the tread off your new tires but it will create that jumping sensation. The part where it rubs on the radius arm is smooth with no jagged edges to cut the tire, it just pushes against it.
My new tires have been rubbing on the radius arms for a while now and they show no signs of wear. I am pretty much used to how far I can turn the wheel before it rubs so it rarely happens anymore.
If you want to eliminate the issue you will have to come up with some sort of steering stop or limiter so that it can only turn so far.
It isn't going to rip the tread off your new tires but it will create that jumping sensation. The part where it rubs on the radius arm is smooth with no jagged edges to cut the tire, it just pushes against it.
My new tires have been rubbing on the radius arms for a while now and they show no signs of wear. I am pretty much used to how far I can turn the wheel before it rubs so it rarely happens anymore.
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Junior User
Joined: Feb 2013
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From: North west Fl
Makes sense. Guess I just gotta find that happy medium while driving. Thanks for all the help. Glad I didnt start ripping stuff off for no reason
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Fleet Mechanic
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What you want to do is find a rim with the correct back spacing so that the tire sits out further from the wheel wells so the tire won't contact the radius arms.
You need to find a rim with less back spacing so that the tire sits out further from the frame.
The only downside is that the tire sticks out beyond the body and this will allow them to kick up rocks onto the side of your paint job. The fix for that is a set of aftermarket fender flares.
Last edited by 1983F1503004x4; Mar 13, 2013 at 08:04 PM. Reason: Had it backwards! Thanks Franklin! :)
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Senior User
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No.
What you want to do is find a rim with the correct back spacing so that the tire sits out further from the wheel wells so the tire won't contact the radius arms.
If you've got a rim with 3 or 3.5'' back spacing, find one that's 4, 4.5, or 5'' to get the tires out further.
The only downside is that the tire sticks out beyond the body and this will allow them to kick up rocks onto the side of your paint job. The fix for that is a set of aftermarket fender flares.
What you want to do is find a rim with the correct back spacing so that the tire sits out further from the wheel wells so the tire won't contact the radius arms.
If you've got a rim with 3 or 3.5'' back spacing, find one that's 4, 4.5, or 5'' to get the tires out further.
The only downside is that the tire sticks out beyond the body and this will allow them to kick up rocks onto the side of your paint job. The fix for that is a set of aftermarket fender flares.
He's talking about 35" tires, that's what I have, the tires already stick out plenty past the body and it still rubs. You would literally need 50% or more of the tire sticking out past the body for a typical 35x12.5 tire to clear the radius arm.
Mine sticks out this far already and it still rubs.
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From: Virginia
14 1/2 inches wide? No wonder they are rubbing. But the correct rim should stop it. You need to move the tire out away from the frame. One of the previous posters was correct, but got it backwards. You need LESS backspacing. Backspacing is how deep the wheel is in the back. If you make the back of the wheel less deep, but keep the rim the same width, that will move the whole thing out away from the truck.
Some thin spacers may do the trick also. You might want to experiment with some big washers, adding them and then jacking the wheel up in the driveway and turning it and see if it stops rubbing. Don't think about running washers down the road though.
Some thin spacers may do the trick also. You might want to experiment with some big washers, adding them and then jacking the wheel up in the driveway and turning it and see if it stops rubbing. Don't think about running washers down the road though.
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From: Denver Metro Area, CO
You would take some measurements:
Let me google that for you
https://www.rsracing.com/tech-wheel.html
Let me google that for you
https://www.rsracing.com/tech-wheel.html