31 10.50s and 15 x 8 low backspace rims vs axles wheel bearings... - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Tech Forums > Tires & Wheels

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-29-2009, 02:05 AM   #1
Newb
 
Join Date: Jun 2009
Posts: 5
31 10.50s and 15 x 8 low backspace rims vs axles wheel bearings...

I Have a TJ (98 sahara) and 31 10.5 wrangler gsa rubber i am currently running with a 1.25 wheel spacer due to suspension rubbing (in paticular the uh control arm i think it is)... the wheel spacer made it clear, but i can't get the @#$% things to stay tight..... common issue... i am thinking about a 15x8 rim with 3.25"-3.5" backspacing but i am concerned about axle/wheel bearing troubles.. any feedback anyone???

amicus is offline   Quote Quick Reply
Old 07-05-2009, 08:14 AM   #2
Jeeper
 
birdhunter's Avatar
 
Join Date: Jan 2009
Location: Wisconsin
Posts: 1,495
I dont have them yet but alot of jeeps
run soft 8s ,They are 15x8 with the back space your talking about
from 3 to 4inch and have never heard anyone blame
them for any bearing trouble

__________________

"locked and loaded"
birdhunter is offline   Quote Quick Reply
Old 07-11-2009, 06:36 PM   #3
IITYWTMWYBMAB

WF Supporting Member
::WF Administrator::
 
4Jeepn's Avatar
 
Join Date: Apr 2005
Location: Florence, KY
Posts: 9,796
Images: 5
3.75bs works really well on 15x8's.
__________________
79.96.85.00.01.97.00.97.93.97.95.94
CJ.XJ.CJ. TJ. TJ.ZJ. TJ.TJ. ZJ.ZJ.YJ. XJ
4Jeepn is offline   Quote Quick Reply
Old 01-26-2010, 05:40 PM   #4
Newb
 
Join Date: Jan 2010
Location: Iowa
Posts: 1
A friend said I could have a set of his extra 15x8 with a 4.75 backspacing... if i run 31 10.5 will they rub? That seems like a big backspacing...
jaquesjeep is offline   Quote Quick Reply
Old 01-26-2010, 07:48 PM   #5
Jeeper

WF Supporting Member
 
chucky cheese's Avatar
 
Join Date: Dec 2006
Location: We eat stuff outa ditches!
Posts: 3,899
I've got 5.5 backspace with 31x10.5 no rub.
__________________
It ain't easy being cheesy:

Sometimes I make decisions like famous people.
George Armstrong Custer "lets go over that hill, I think those are friendly indians!"

Titanic's Captain Smith "What icebergs? Full speed ahead!"
chucky cheese is offline   Quote Quick Reply
Old 01-26-2010, 08:08 PM   #6
Jeeper
 
InfernoGirl's Avatar
 
Join Date: May 2009
Location: Newburgh IN
Posts: 11,419
Quote:
Originally Posted by chucky cheese View Post
I've got 5.5 backspace with 31x10.5 no rub.
Me too! On 15x8's
__________________

Dirty Mudder column covers|

'01 Wrangler Sport, Sienna Pearl Mine
'07 Rubicon 2D, Flame Red His
'11 Wrangler Sport 4D, Black Ours...

Quote:
Originally Posted by Kate View Post
Not every girl, is a Jeep girl. We're a special breed.
InfernoGirl is offline   Quote Quick Reply
Old 01-26-2010, 10:13 PM   #7
Jeeper

WF Supporting Member
 
chucky cheese's Avatar
 
Join Date: Dec 2006
Location: We eat stuff outa ditches!
Posts: 3,899
Quote:
Originally Posted by InfernoGirl View Post
Me too! On 15x8's
Mine 8' wide also. Can't figure out why alot of posters get rubbing. No lift also. Only thing I can think of is their front axles are off center like what sometimes happens with bad lifts.
__________________
It ain't easy being cheesy:

Sometimes I make decisions like famous people.
George Armstrong Custer "lets go over that hill, I think those are friendly indians!"

Titanic's Captain Smith "What icebergs? Full speed ahead!"
chucky cheese is offline   Quote Quick Reply
Old 01-27-2010, 08:21 AM   #8
Jeeper
 
InfernoGirl's Avatar
 
Join Date: May 2009
Location: Newburgh IN
Posts: 11,419
Quote:
Originally Posted by chucky cheese View Post
Mine 8' wide also. Can't figure out why alot of posters get rubbing. No lift also. Only thing I can think of is their front axles are off center like what sometimes happens with bad lifts.
Idk, I always figured alot of the folks who rub on stock rims with 31's are running 7" wide rims...... <<<(my natural state)
__________________

Dirty Mudder column covers|

'01 Wrangler Sport, Sienna Pearl Mine
'07 Rubicon 2D, Flame Red His
'11 Wrangler Sport 4D, Black Ours...

Quote:
Originally Posted by Kate View Post
Not every girl, is a Jeep girl. We're a special breed.
InfernoGirl is offline   Quote Quick Reply
Old 01-27-2010, 07:51 PM   #9
Jeeper

WF Supporting Member
 
chucky cheese's Avatar
 
Join Date: Dec 2006
Location: We eat stuff outa ditches!
Posts: 3,899
Quote:
Originally Posted by InfernoGirl View Post
Idk, I always figured alot of the folks who rub on stock rims with 31's are running 7" wide rims...... <<<(my natural state)
Good point. Less rim width more tire bulge.
__________________
It ain't easy being cheesy:

Sometimes I make decisions like famous people.
George Armstrong Custer "lets go over that hill, I think those are friendly indians!"

Titanic's Captain Smith "What icebergs? Full speed ahead!"
chucky cheese is offline   Quote Quick Reply
Old 02-07-2010, 06:33 PM   #10
Jeeper
 
DANIMAL's Avatar
 
Join Date: Aug 2008
Location: Pewaukee,WI
Posts: 428
Quote:
Originally Posted by chucky cheese View Post
Mine 8' wide also. Can't figure out why alot of posters get rubbing. No lift also. Only thing I can think of is their front axles are off center like what sometimes happens with bad lifts.
I don't think that "bad lifts" are the reason. I think that it is lifts in general. I had 31x10.5r15 on stock 15x7 wheels and had zero rubbing...even off road. I put on a 2-1/2" lift and now get rubbing on the passenger side lower control arm. This is because the track bar is pulling the front axle to the drivers side so now on full right turn I get rubbing. All I need to fix the problem is an adjustable track bar to bring my axle to center again. I don't think any 2-1/2" lifts come with those.
__________________
2013 Gecko JK Sport S
2009 White JKU Rubicon
DANIMAL is offline   Quote Quick Reply
Old 02-07-2010, 10:19 PM   #11
Jeeper

WF Supporting Member
 
chucky cheese's Avatar
 
Join Date: Dec 2006
Location: We eat stuff outa ditches!
Posts: 3,899
Quote:
Originally Posted by DANIMAL View Post
I don't think that "bad lifts" are the reason. I think that it is lifts in general. I had 31x10.5r15 on stock 15x7 wheels and had zero rubbing...even off road. I put on a 2-1/2" lift and now get rubbing on the passenger side lower control arm. This is because the track bar is pulling the front axle to the drivers side so now on full right turn I get rubbing. All I need to fix the problem is an adjustable track bar to bring my axle to center again. I don't think any 2-1/2" lifts come with those.
Why do some jeepers get tire rubbing with 10.5 tires and some don't. Some with lifts some without. I have not seen a post yet that explains this. My theory is the jeeps with rubbing have the axle pulled off center for some reason.
__________________
It ain't easy being cheesy:

Sometimes I make decisions like famous people.
George Armstrong Custer "lets go over that hill, I think those are friendly indians!"

Titanic's Captain Smith "What icebergs? Full speed ahead!"
chucky cheese is offline   Quote Quick Reply
Old 02-09-2010, 01:34 PM   #12
Jeeper
 
IndyJeepMan's Avatar
 
Join Date: Dec 2009
Location: Indianapolis
Posts: 3,387
Mine rubbed with the stock alloy rims with 31x10.50.

Now that I have 15x8 w/3.75 backspacing steelies i can turn forever and no rub whatsoever. Tires also stick out of the flares a bit. But that looks SWEET!
__________________
1980 CJ7
3.9L Cummins POWER!
Follow my build, its cool and stuff: http://www.wranglerforum.com/f118/project-shake-n-bake-a-cummins-cj-188515.html]
IndyJeepMan is offline   Quote Quick Reply
Old 02-13-2010, 10:09 PM   #13
Moderator

WF Supporting Member
::WF Moderator::
 
doclouie's Avatar
 
Join Date: Feb 2010
Location: In the mountains.
Posts: 3,653
Images: 4
The answer that many have about rubbing or not on 31" 10.5 15 tires will directly change depending on the tires you have. My Dick Cepek tires rub on both sides and my Big O tires in the past do not. It would be helpful to post here what brand your 31" tires are on your stock ride and if they will rub.
doclouie is offline   Quote Quick Reply
Old 02-14-2010, 05:22 AM   #14
Jeeper

WF Supporting Member
 
chucky cheese's Avatar
 
Join Date: Dec 2006
Location: We eat stuff outa ditches!
Posts: 3,899
Quote:
Originally Posted by doclouie View Post
The answer that many have about rubbing or not on 31" 10.5 15 tires will directly change depending on the tires you have. My Dick Cepek tires rub on both sides and my Big O tires in the past do not. It would be helpful to post here what brand your 31" tires are on your stock ride and if they will rub.
31x10.5x15 BFG a/t's on 15x8 with 5.5 backspace. No rub.
__________________
It ain't easy being cheesy:

Sometimes I make decisions like famous people.
George Armstrong Custer "lets go over that hill, I think those are friendly indians!"

Titanic's Captain Smith "What icebergs? Full speed ahead!"
chucky cheese is offline   Quote Quick Reply
Old 02-19-2010, 05:04 AM   #15
Jeeper
 
kpool's Avatar
 
Join Date: Feb 2010
Location: gainesville /ga/30506
Posts: 300
Images: 10
Send a message via AIM to kpool
I've got a 2000 Sahara. It had 16x7 factory alloys. When I first put a 2'' lift and went to 265's (32'') it scrubbed when I turned it deep because of the wider tires. Went to 4'' lift and of course went to 285's (33'') and it scrubbed more because they were a lilttle bit wider.Now with an added body lift, 15x8 Eagle alloys with good backspacing on 35x12.5's no scrubbing.
kpool is offline   Quote Quick Reply
Old 02-19-2010, 07:10 AM   #16
Jeeper
 
InfernoGirl's Avatar
 
Join Date: May 2009
Location: Newburgh IN
Posts: 11,419
That's a good looking Sahara! I think Doc is right, differences in actual tire width vs. stated size. I just put 33x12.5's on 4"bs soft 8's on mine. No lift yet, but with the bs I don't rub. I really hope they don't rub when she's lifted.....
__________________

Dirty Mudder column covers|

'01 Wrangler Sport, Sienna Pearl Mine
'07 Rubicon 2D, Flame Red His
'11 Wrangler Sport 4D, Black Ours...

Quote:
Originally Posted by Kate View Post
Not every girl, is a Jeep girl. We're a special breed.
InfernoGirl is offline   Quote Quick Reply
Old 02-19-2010, 08:23 AM   #17
Jeeper
 
kpool's Avatar
 
Join Date: Feb 2010
Location: gainesville /ga/30506
Posts: 300
Images: 10
Send a message via AIM to kpool
Thanks,
It's only taken about 6 years and alot of Craigslist...LOL

kpool is offline   Quote Quick Reply
Reply

Tags
15x8 , 31x10.50 , rub , tj sahara , wheels

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
wheel backspace question ufatbasted YJ Tech Forum 4 10-09-2009 01:41 PM
Front wheel bearings spearhunter_1 YJ Tech Forum 15 03-13-2008 07:27 AM
Negative offset rims question Willis General Jeep Discussion 4 07-25-2007 03:49 PM
Dana 44 rear outer wheel bearings? 04moneypit TJ Tech Forum 3 10-13-2006 09:21 AM
have wheel bearings for dana 44 changed?? jroth TJ General Discussion Forum 2 07-07-2006 11:14 AM


logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:31 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC