Tires rubbing
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New User
Joined: Mar 2003
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From: Denver, CO
Tires rubbing
I have a 89 EB Bronco. It has the stock wheels, and the guy I bought it from had 33x12.5 tires on it that rub on the inside when I turn sharply. I am wondering if I get wheels with a negative offset, will this fix the problem or will the tires just rub on the fender? Thanks.
Lead Driver
Joined: Sep 2002
Posts: 9,182
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From: Gateway to the West
Tires rubbing
By "negative offset" I am assuming you mean shallower backspacing than the stock rims. Its really a toss-up considering that by moving the tires further out from under the truck you could get rubbing against fenders and the bumper. As the tires move out away from the steering knuckles the arc that they move in becomes proportionally larger thereby effectively giving the size of the arc from lock to lock more area to cover.
I have heard of people getting 33x12.50's to fit without rub on newer (92-96) Bronco's by shimming the bumper forward a bit but I don't know how well or even if this is a possibility on your 89. Someone out here knows, thats for certain.
I have heard of people getting 33x12.50's to fit without rub on newer (92-96) Bronco's by shimming the bumper forward a bit but I don't know how well or even if this is a possibility on your 89. Someone out here knows, thats for certain.
Senior User
Joined: Jul 2002
Posts: 267
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From: Everett, WA
Tires rubbing
Before you go to new rims or shimming out the bumper (not a big deal on an 89), you might want to adjust the steering stops.
I'm running 35's on 8-1/2" rims, they don't stick out past the
body, and I have no rubbing problems at all ater moving the stops just a couple of turns.
Could be a quick and easy fix for you.
msautry
I'm running 35's on 8-1/2" rims, they don't stick out past the
body, and I have no rubbing problems at all ater moving the stops just a couple of turns.
Could be a quick and easy fix for you.
msautry
Senior User
Joined: Mar 2003
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From: enderby
Tires rubbing
you should have no problem putin 33s 0n 8" white spokes with no rubin but the offset rims look way better and they fit just as good, but don't put 35s on 8" rims lollol not a good ideal
Senior User
Joined: Aug 2000
Posts: 473
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From: Richmond, CA
Tires rubbing
I have a '90 that had 33"x12.5" tires on 15x8 rims when I had purchased it, that didn't rub at all. I also used to have an '89 and both were the same except for the year.
If your tires are rubbing, You could do one of several things. For starters adjust the steering stops on the steering nuckles on both sides until it doesn't rub. You could also get a set of 15"x10" rims. If you notice that the 33" tires on stock rims bulge out a little on the side walls. By putting this same size tire on a set of 10" wide rimes will cause the tires to stand a little taller. Another thing you could do is put on a suspension lift kit on. On my rig I didn't put on lift kit until about six months after I had put thenew 33x12.5 tires on new 15x10 baja style rims. During that six months I didnot have any kind of rubing and I did not have to space out the front bumper.
If your tires are rubbing, You could do one of several things. For starters adjust the steering stops on the steering nuckles on both sides until it doesn't rub. You could also get a set of 15"x10" rims. If you notice that the 33" tires on stock rims bulge out a little on the side walls. By putting this same size tire on a set of 10" wide rimes will cause the tires to stand a little taller. Another thing you could do is put on a suspension lift kit on. On my rig I didn't put on lift kit until about six months after I had put thenew 33x12.5 tires on new 15x10 baja style rims. During that six months I didnot have any kind of rubing and I did not have to space out the front bumper.
Posting Guru
Joined: Jul 2002
Posts: 2,205
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From: Vancouver WA
Tires rubbing
Just to clarify a little bit. Tire height is not what determines what width rim you need. It is the tire width that determines rim width. Most manufacturers recommend a minimum 8.5" rim for 12.5" wide tires no matter if they are 33" or 35" tall.
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Senior User
Joined: Mar 2003
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From: enderby
Tires rubbing
i did'nt think 35s came in 12.5 wide i think it's 14 wide or 14.5 so it's not very smart to put a 14 wide on a 8" wheel? just one mans opinion.:
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Lead Driver
Joined: Sep 2002
Posts: 9,182
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From: Gateway to the West
Tires rubbing
Just to keep this all in perspective, adjusting the steering stops MAY cure the rubbing but WILL also reduce your truning radius as well. Maybe not enough to worry about but thats what it does. And backspacing on the rims does play an important role in the overall scheme of things. The stock rims on my 92 had a 4.5" backspacing on a 7.5" rim. My Mickey T. Challengers only have a 3.5" backspacing. If the backspacing on the aftermarket rims was the same as stock I would be in a world of trouble with my 33's against the extended raduis arms. Fortunately, the 1" less depth to the backspacing made it all work out.
BTW, yes, 35x12.50 is an available size. Heck, I know a '69 Bronco owner who has 33x9.50's on hers just so they will fit inside the rear fenders....she doesn't want to cut her baby's original fenders just to go wheelin'.
BTW, yes, 35x12.50 is an available size. Heck, I know a '69 Bronco owner who has 33x9.50's on hers just so they will fit inside the rear fenders....she doesn't want to cut her baby's original fenders just to go wheelin'.
Last edited by greystreak92; Mar 23, 2003 at 03:28 AM.
Senior User
Joined: Jan 2002
Posts: 232
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From: SW Washington, USA
Tires rubbing
I also have an 89 with 31's with stock rims and my son has an 86 with 33's and after market rims and they both rub on the frame not the fender. Is this where your's rub? I thought 31's were the tallest that would fit stock.
Kallie
Kallie