Need Help With Backspacing! - JeepForum.com
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post #1 of 16 Old 06-18-2017, 08:19 PM Thread Starter
CRyanWJ
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Need Help With Backspacing!

Hey guys, Im new to the forum and I have a 2001 WJ and a buddy and I just recently did the iron rock 4" lift. I went and bought stock 2010 wrangler rims with BFG A/T 245/75/17. The night that we finished, we hit a local trail and I was rubbing. The next night we went out and found somewhere that we can flex so I can see where it was actually hitting. When we started looking, I came to realize under minimal flex my rear tire will leaning on the the shock. So I'm going to get to rims and I'm looking at 17"x9". Now I don't really know how much back spacing I would need. I saw a lot of people running 4.5bs. What is the best bs i would need to get the rim to stick past the fender for the better look but also not rub? Thanks in advice!!

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post #2 of 16 Old 06-18-2017, 09:46 PM
Squarecat
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Need Help With Backspacing!

A bit of rubbing is hardly unusual and not much to be worried about when flexing. But if you're stuffing your tires so deep into your fenders that it prevents them from turning, that's not something backspacing & wheel width will fix.

With 9" wide wheels, you're gonna need additional backspacing to reduce rubbing and as backspacing goes up, so does stress on mechanical components, leading to accelerated wear.

Also, wider wheels tends to lead to problems with tire beads popping when airing down and it pushes the weakest part of the sidewall out into rocks & roots.

All of this does not account for looks, that being entirely subjective. If you look at how a serious trail rig for your favorite wheeling spots is equipped and model your choices after that, you'll be good to go. But if you make decisions with a bias towards looks (when it runs counter to the performance of that component) then you're on your own.

Oh and DO NOT ask for tire suggestions. For every 10 people you ask, you'll get 8!different opinions. Just observe what others are using that works and those a try. If you hit on a good set that performs well from the start, consider yourself lucky.


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post #3 of 16 Old 06-19-2017, 12:51 PM Thread Starter
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So if I was just looking to put the wheel out more so its not to close to the stock, what is a recommended back spacing to get?
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post #4 of 16 Old 06-19-2017, 01:22 PM Thread Starter
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^^^^close to the shock***
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post #5 of 16 Old 06-19-2017, 01:36 PM
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4.5" BS will keep your tires off the shocks and will "flush" your tire with the fender.

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post #6 of 16 Old 06-19-2017, 02:31 PM Thread Starter
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Alright, cool thanks! What rim and tire size are you running?
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post #7 of 16 Old 06-19-2017, 03:21 PM
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That picture was with the WJ on OEM 16" wheels, 1.5" RC wheel spacers, 245/75R16 DuraTracs on the OME HD lift.

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post #8 of 16 Old 06-19-2017, 03:58 PM
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That picture was with the WJ on OEM 16" wheels, 1.5" RC wheel spacers, 245/75R16 DuraTracs on the OME HD lift.
I ran the same setup and tires using Spidertrax 1.25" spacers. As an aside, I think 9" wide wheels are way to wide for a 245/x tire. Personally, I would go with 7" wide unless I was planning to go wider, in that case I'd go 8" wide rim.

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post #9 of 16 Old 06-19-2017, 04:08 PM Thread Starter
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Yeah, as I've been going more research on the forum I saw that a 8" wide with be better with a 4.5" back spacing. I saw some set ups like that and they pop past the fenders and seems like they will be far enough away from the shocks. Thanks for the help guys!
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post #10 of 16 Old 06-19-2017, 04:34 PM
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Need Help With Backspacing!

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Originally Posted by CRyanWJ View Post
I saw some set ups like that and they pop past the fenders[...]

Helps to give your Jeep that fresh off the trail look when the tires can kick extra mud up around the fenders.



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post #11 of 16 Old 06-19-2017, 04:50 PM Thread Starter
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Yeah thats what I'm aiming for! Just trying to get muddy as possible!!!
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post #12 of 16 Old 06-19-2017, 07:13 PM
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4.5" BS will keep your tires off the shocks and will "flush" your tire with the fender.





Any idea if using the 1.5" spacer will cause excessive wear on wheel bearings?

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post #13 of 16 Old 06-20-2017, 07:02 AM
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Wheels with 6" BS (OEM) + 1.5" wheel spacers will cause the same wear as wheels with 4.5" BS.
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post #14 of 16 Old 06-20-2017, 07:31 AM
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These are 16x8 Pro Comp 7069s with 4" bs and Kanati Mud Hog 245/75R16s if it helps with the question any. I do intend to go up to 33s or 35s after my lift in the future, hence the 8" wide wheels. If I was staying with this tire size I would have looked for a 7" wheel.






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post #15 of 16 Old 06-20-2017, 10:07 PM
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Quote:
Originally Posted by WiLieR
These are 16x8 Pro Comp 7069s with 4" bs and Kanati Mud Hog 245/75R16s if it helps with the question any. I do intend to go up to 33s or 35s after my lift in the future, hence the 8" wide wheels. If I was staying with this tire size I would have looked for a 7" wheel. Sent from my iPhone using Tapatalk
How is the ride on kanati tires? I'm thinking about getting a set

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