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Unread 09-17-2012, 08:46 AM   #1
Rproject
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Wheel backspacing. Yes, I read the stickies.

Within the next month I'm going to upgrade from 30's to 33's and am looking to see what backspacing people are running for 33x10.5's and 33x12.5's.

For now, I'll be running standard flares, but will be changing out to Bushwackers over the winter.

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Unread 09-17-2012, 09:57 AM   #2
SunDevilJeeper
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33x12.50 tires

15x8 wheels with 4" backspacing

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Unread 09-17-2012, 10:00 AM   #3
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15x7 rims for the 10.50's and 8" wide for the 12.50's. If you can get anywhere near 3.5" you'll be ok.
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Unread 09-18-2012, 10:45 AM   #4
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OK, thanks. So 3.5 or 4 backspacing should keep me from rubbing. We had a minor rub problem with our last YJ, but I can't remember what backspacing we went with.

This leads me to my next question: I've heard plenty of talk about axle strain from wheel spacers and narrow backset wheels. The current YJ will mostly be a weekend play toy with off roading coming into the equation about 4-5 times a year. I'm generally pretty skinny with the pedal, but would like to know what kind of warning signs to watch out for BEFORE I shred a differential or split an axle in half.
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Unread 09-18-2012, 12:50 PM   #5
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There are no warning signs other than loose lugs. Sometimes damage just happens and you can't tell until after the storm has calmed. I can tell yoi that bouncing on an obstacle is a sure fire way to break something. I personally don't like wheel spacers because it adds to the maintainence work log but they surely have their place.

What is it you're looking to do as an overall goal?
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Unread 09-18-2012, 03:18 PM   #6
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My overall goal is to run 12.5's without rubbing on my springs when turning.

As for how I'll be using my Jeep: 80+% surface streets, 10% fire roads and forest trails, 10% rocks and mud.
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Unread 09-18-2012, 03:26 PM   #7
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As your jeep will mostly be utilized on the street like mine is, how do you feel about adjusting the steering stops? I don't have any problems with 35 12.50's and 3.5" of backspacing on 15x8" rims. Your results will vary because its a jeep.
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Unread 09-18-2012, 03:42 PM   #8
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Hmmm, never done that before. Never even thought of it. Do you notice a negative affect while off road?
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Unread 09-18-2012, 04:09 PM   #9
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No negative effect offroad because of the way that 4wd works. You'll get some binding if you turn too sharply and have all four planted in 4lo so take that into consideration. Anythig you can do to keep your springs from eating your tires is beneficial in my book even if it seems to sacrifice turning radius.
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Unread 09-18-2012, 04:21 PM   #10
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Quote:
Originally Posted by Anticanman View Post
No negative effect offroad because of the way that 4wd works. You'll get some binding if you turn too sharply and have all four planted in 4lo so take that into consideration. Anythig you can do to keep your springs from eating your tires is beneficial in my book even if it seems to sacrifice turning radius.
I'd have to agree. The springs on our last YJ had two very nicely polished spots on them.
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Unread 09-18-2012, 05:09 PM   #11
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My passenger side tire rubs at full lock when I'm turning right. Not enough to tear **** up under there, but enough that you can hear it and feel it. Not really all that bad.


I'll take a pic and post it.
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Unread 09-18-2012, 07:17 PM   #12
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While I was taking pictures, I saw that it's not rubbing. I guess the damn thing has to be moving for it to rub.

Which ain't gonna happen anytime soon.
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