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Unread 04-04-2013, 11:47 AM   #1
SsJMonkey
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Question about 33x10.5 Backspacing

Havent been able to find an answere for this yet.

Im wanting to purchase some new rims and tires for my TJ, i would like to know if i can use 33x10.5 tires on a stock TJ, without them rubbing, and what amount of backspacing im going to need on the rims and prefered rim sise, i have no plans on lifting the Jeep in any way.

Thank you for any help you may offer.

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Unread 04-04-2013, 11:51 AM   #2
TheBoogieman
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If you have a lift they'll work on stock wheels (5-5.5" backspacing).I always go with 3.75" backspacing so they stick out a couple inches past the flares.15x8" wheels are what most people use.
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Unread 04-04-2013, 11:56 AM   #3
matthew900
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I'm running 33x10.5 KM2's on the stock Canyon rims. I get some rub against the frame and control arms when I have the steering at full lock.
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Unread 04-04-2013, 12:03 PM   #4
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Quote:
Originally Posted by matthew900 View Post
I get some rub against the frame and control arms when I have the steering at full lock.
Add 2 washers to the steering stops.

http://www.stu-offroad.com/steering/...teerstop-1.htm
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Unread 04-04-2013, 12:55 PM   #5
ASUsax
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Quote:
Originally Posted by matthew900 View Post
I'm running 33x10.5 KM2's on the stock Canyon rims. I get some rub against the frame and control arms when I have the steering at full lock.
Same here. Washers fix it.
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Unread 04-04-2013, 04:17 PM   #6
afaletto
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I am always amazed at how they work for others. I tried my 33x10.5 KO'S on my canyons and they were too tight on the rear spring perched for me. The fit, but it was like 1/4" clearance. I went with 7" wide and 3.75 BS wheels and no rub/clearence issues. I guess it must be okay cuz no one ever posts about inner tire walls blowing out.
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Unread 04-05-2013, 05:38 AM   #7
otisdog
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My 33 x 10.5 KM2's on stock Gambler wheels were way too close to the rear spring perchs for my comfort. Added 1.25" spacers.
jim
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Unread 04-05-2013, 08:03 AM   #8
TheBoogieman
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Quote:
Originally Posted by afaletto View Post
I am always amazed at how they work for others. I tried my 33x10.5 KO'S on my canyons and they were too tight on the rear spring perched for me. The fit, but it was like 1/4" clearance. I went with 7" wide and 3.75 BS wheels and no rub/clearence issues. I guess it must be okay cuz no one ever posts about inner tire walls blowing out.
Did you center the rear axle after the lift? Rubi's have 31x10.50"s stock and have 5.5" backspacing.
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Unread 04-05-2013, 08:51 AM   #9
Patrick H
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Quote:
Originally Posted by TheBoogieman View Post
Did you center the rear axle after the lift? Rubi's have 31x10.50"s stock and have 5.5" backspacing.
Moab wheels have 5" back space.

http://www.jeepforum.com/forum/f9/st...1/#post4121478
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Unread 04-05-2013, 08:58 AM   #10
Kodiak17
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Any pics with the KM2's and 3.75" BS?
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Unread 04-05-2013, 08:59 AM   #11
afaletto
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No I actually had Costco mount one before my lift. I'm assuming the axle was centered via factory.
To the OP, if you do get new rims, 7" wide ones will keep yoir current stance (but more back spacing) and will tuck those 10.5's nicely inside the fender flare at flex and better keep mud in the well and off the side of your jeep. Also, narrower rims hold a bead better at lower pressures. Not a huge consideration for me as I only air down to about 14 for trails, but I think technically narrower provides more insurance. However, if you ever think you will switch to 12.5's then 7" rims would not be your best choice.
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Unread 04-05-2013, 09:42 AM   #12
TheBoogieman
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Originally Posted by Patrick H View Post
Either way,they don't rub was my point.
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Unread 04-07-2013, 08:20 AM   #13
joe_jeep
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Quote:
Originally Posted by SsJMonkey View Post
i would like to know if i can use 33x10.5 tires on a stock TJ, without them rubbing.

i have no plans on lifting the Jeep in any way.
i dont think people read your post correctly, or im missing something?

no you cant do that. for 33's you need a lift, or it will rub!
rim size and back spacing wont matter.
31's are about as big as will fit without a little lift.
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Unread 04-16-2013, 12:27 PM   #14
matthew900
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Quote:
Originally Posted by joe_jeep View Post
i dont think people read your post correctly, or im missing something?

no you cant do that. for 33's you need a lift, or it will rub!
rim size and back spacing wont matter.
31's are about as big as will fit without a little lift.
I'm running 33X10.5 with no lift. Lifts are not the only option, I used metal cloak front fenders and the setup works great. In fact Iím currently under stock height due to saggy springs and heavy aftermarket additions.

I swear lifts are like drugs around here. Itís like youíre on the school playground and everyone is always trying to get you to try one. I feel like getting a bumper sticker that says ďsay no to lifts.Ē
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33x10.5 , backspacing , rubbing , tires , tj

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