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Old 01-09-2011, 06:28 PM
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Backspacing???

I am looking for new wheels. I know this has prob been asked 10,000 times but I looked and could not find my answer. I want to get 15" rims with -19mm offset or 3.7" backspace. I plan on running 33x12.5x15 is this backspacing good or do I need to look for a diff rim? I have a 07 two door Sahara. How much would my tire stick out if I went with this rim?

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Old 01-10-2011, 06:19 PM   #2
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To run 15x8 wheel on a 2007 and newer jeep it really needs to have a 1 -19mm offset or lower (more negative)

Here's a link that may help...: https://www.wranglerforum.com/f27/15-...-jk-67738.html

We have a few 15x8 -19mm offset wheels for the Jk. Let us know if we can help.


Here's another one: 15x8 -19mm MB72 (this one has 4" of lift)


- Travis

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Old 01-10-2011, 07:12 PM   #3
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You know the 15" wheel will probably rub the calipers, right? Some do, some don't....
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Old 01-11-2011, 11:57 AM   #4
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You know the 15" wheel will probably rub the calipers, right? Some do, some don't....
This is an accurate statement when dealing with steel wheels as the construction is different when compared to an Alloy. Typically speaking though, Alloy wheels with the given specs listed in post #2 will clear the factory JK brakes

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Old 01-11-2011, 12:02 PM   #5
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Thanks for the clarification Matt.
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Old 01-11-2011, 12:04 PM   #6
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Old 01-12-2011, 12:05 AM
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Thanks for all your help
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Old 01-12-2011, 12:19 AM   #8
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You can always throw some spacers on if need be..
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Old 01-12-2011, 09:38 AM   #9
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Spacers are illegal in some states...... And finding a tire place that will even touch your vehicle with spacers can be a challenge in other places....
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Old 01-13-2011, 08:27 AM   #10
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Quote:
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Spacers are illegal in some states...... And finding a tire place that will even touch your vehicle with spacers can be a challenge in other places....
Really? I never had that problem in oklahoma
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Old 01-13-2011, 09:01 AM   #11
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Don't forget the difference between SPACERS AND ADAPTERS !!!

Spacers just have big holes to set the wheel farther away from the hub and ADAPTERS have clearance holes for the lugbolt pattern and a new set of lug STUDS, to attach the wheel !!

The spacers width is limited by the existing stud length, where ADAPTERS can be of any width !

Trouble many years ago was with SPACERS, because of sloppy wheel attachment !!

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Old 01-13-2011, 09:03 AM   #12
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Notice I said SOME states..... Not all. Check with your locals to find out how it applies to you.....
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Old 01-13-2011, 07:24 PM   #13
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Quote:
Originally Posted by Discount Tire View Post
This is an accurate statement when dealing with steel wheels as the construction is different when compared to an Alloy. Typically speaking though, Alloy wheels with the given specs listed in post #2 will clear the factory JK brakes

-Matt
Might clear the brakes just fine, but the chances of the rim hitting the sway bar disconnect bolt is really good with anything less than a 4.5 inch backspace..


On another note I'm curious as to why you are going with a 15inch rim???

It should have came stock with 17's and the cost of 17 inch tires are reasonable
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Old 01-14-2011, 01:03 AM   #14
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Quote:
Originally Posted by JIMBOX
Don't forget the difference between SPACERS AND ADAPTERS !!!

Spacers just have big holes to set the wheel farther away from the hub and ADAPTERS have clearance holes for the lugbolt pattern and a new set of lug STUDS, to attach the wheel !!

The spacers width is limited by the existing stud length, where ADAPTERS can be of any width !

Trouble many years ago was with SPACERS, because of sloppy wheel attachment !!

JIMBO
Ah thank you for the correction! I meant adapters
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Old 01-14-2011, 09:42 AM   #15
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Here's some information on the subject that may interest some of you.

https://www.wranglerforum.com/f27/15-...els-67737.html

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Originally Posted by tuff2010 View Post
Might clear the brakes just fine, but the chances of the rim hitting the sway bar disconnect bolt is really good with anything less than a 4.5 inch backspace..


On another note I'm curious as to why you are going with a 15inch rim???

It should have came stock with 17's and the cost of 17 inch tires are reasonable
They don't clear the JK brakes in 15". We have test fit plenty of them. When steel wheels are built, the center of a steel wheel is stamped into shape and a flange is left at the back of each hole for structural reasons. This flange hits the brake caliper. Some people have tried grinding down the flange but doing so is highly unrecommended as it can jeopardize the strength of the wheel.

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