I just got a 09 Unlimited..

I want to put XD Black Spy 18x9 rims and LT325/65R18 tires on it.. I'm pretty sure I'm going to have to put some spacers on there to make them fit.. but will it still rub? That tire is the equivalent of 35x13.50.

Anyone else running this size? I'm not really sure how the offset on the website says the wheels are -12mm.

Any info would be appreciated!

 

I meant.. I'm not really sure how the offset is going to effect it.

 

A good place to start is the Wheels & Tires FAQ:

https://www.jk-forum.com/forums/modified-jk-tech-2/modified-tech-faq-answers-questions-every-newbie-has-18617/

 

I kinda understand how the backspacing works..

The wheels I'm looking at are Xtreme Alloys 6001 Series -- 18x9's. They have 5" BS.. and I'm going to put 35x12.50's on them.

If I get the spacers.. will they fit? How will they look? I wish I could find someone with pics!

 

Here are some random pulls from the FAQ. The information there is not foolproof, but it is a very good place to start...

Q: What back spacing will I need on my wheels in order to clear 12.50 wide tires?
A: I would recommend that you do not exceed 4.75" of back spacing and even at that, you may still have some minor rubbing up front at a full turn. Also, I would recommend that you do not go any less than 3.75" as anything less would cause your tires to stick out very far past the fender flares. Any back spacing within this range should work out great.

So, your tires are wider and your wheels have more than the recommended backspace. What does that mean?
Without spacers - You're rubbing.
With spacers - Backspace of 5" - spacer of 1.5" = backspace of ??
'Possibly' not rubbing, but the tires are sticking well out past the fender. Is that a problem where you live? Will you need wider fenders to keep compliant?

Q: What size lift do I need to get in order to fit 35" Tires?
A: I would recommend a minimum of a 2.5" budget boost but a 3" lift would be a better fit. You can also install a 2" budget boost and 1" body lift to get you there as well.

Do you have a lift? If not, guess what...

Q: Do I need to install bump stop extensions?
A: Yes. Bump stop extensions are designed to prevent the over compression of your coils and are absolutely necessary. Bump stop extensions can also help prevent the rubbing of fender flares at a full stuff as well as the bottoming out of shocks.

Do you have extensions? If not, guess what...

Anyway, without knowing your setup, all anyone can do is guess whether you'll rub.

 

Are you stock? If so, they will rub.

 

Im running 14.5" wide tires with a wheel that has 4.5 of backspacing. My tires dont rub at all. I have a 3 inch black diamond lift to go along with it. You should be fine with 13.5" tires as long as you get the right backspacing on your wheels.

 

Cool.. Yeah I'm going with the Rough Country 4" Lift... Do you have any pics of the stance of your JK from the front? That would be realllly helpful.

Since I'm going with 5BS.. with Spidertrax spacers 1 1/2" spacers.. that should effectively put me at 3.5" BS right?

Is it that simple? Sorry to be such a newb.. I'm buying my wheels/tires online so it's kinda hard to get information and a general idea of how they look.

JK-forum.com rocks.

 

Why aren't you just buying wheels with the proper backspacing? Or do you already have them??

 

If you have no lift, stick with 33's on your 18,s and you should be fine.