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Old 02-03-2015, 03:55 PM
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3.5" or 3.75" Backspacing - Thoughts

I know there are probably a lot of threads asking a similar question and I know that there are several threads about spacers and everyone has their thoughts/opinions on them. However, I wanted to ask the question anyways.

If you had a wheel (17x8.5) with 5" backspacing running a 35x12.50 tire on a JKU and you were still rubbing on the passenger side front lca, do you see a problem with install some spacers (either spidertrax 1.5" or teraflax 1.25") to get more backspacing (i.e. 3.5" or 3.75" depending on spacer used)? I know that it would put a little more stress on the ball joints. But would it be a big issue?

FYI...I've already put a small washer or two on the steering bump and I still get rubbing. Only on the passenger side though.

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Old 02-03-2015, 05:06 PM   #2
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Quote:
Originally Posted by MAG00 View Post
I know there are probably a lot of threads asking a similar question and I know that there are several threads about spacers and everyone has their thoughts/opinions on them. However, I wanted to ask the question anyways. If you had a wheel (17x8.5) with 5" backspacing running a 35x12.50 tire on a JKU and you were still rubbing on the passenger side front lca, do you see a problem with install some spacers (either spidertrax 1.5" or teraflax 1.25") to get more backspacing (i.e. 3.5" or 3.75" depending on spacer used)? I know that it would put a little more stress on the ball joints. But would it be a big issue? FYI...I've already put a small washer or two on the steering bump and I still get rubbing. Only on the passenger side though.
I'm not a fan of that low backspacing for a few reasons. Appearance and wear and tear on suspension components come to mind. But I will say that the guys and gals running 35's on 15's are all pretty much running 3.75" backspacing. So it's not impossible...

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Old 02-03-2015, 05:15 PM   #3
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Right ^^

Spacers/wheel with less back spacing... Same results.
There's dudes running 38x13.5's with low back spaced wheels and spacers just to gain the tire clearance. 2.0 backspace
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Old 02-03-2015, 05:18 PM
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I figured it would probably be ok. Seems as though all of the reputable wheel spacers made are 1.5" though. I did see the teraflex seems to make a 1.25" spacer.

Any thoughts on the Spidertrax 1.5 spacers versus the Teraflex 1.25" spacers?
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Old 02-03-2015, 06:28 PM   #6
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Originally Posted by MAG00 View Post
I know there are probably a lot of threads asking a similar question and I know that there are several threads about spacers and everyone has their thoughts/opinions on them. However, I wanted to ask the question anyways.

If you had a wheel (17x8.5) with 5" backspacing running a 35x12.50 tire on a JKU and you were still rubbing on the passenger side front lca, do you see a problem with install some spacers (either spidertrax 1.5" or teraflax 1.25") to get more backspacing (i.e. 3.5" or 3.75" depending on spacer used)? I know that it would put a little more stress on the ball joints. But would it be a big issue?

FYI...I've already put a small washer or two on the steering bump and I still get rubbing. Only on the passenger side though.
I will add my 2 cents.
You will be adding to much additional weight and stress on your Ball Joints, hub bearings, plus now you have two sets of studs to keep tight.
And what about your Wranglers handling characteristics?
Mud, Dirt and rocks being thrown at your doors, and on you if windows are opened.
From a Safety stand point, I don't recommend it IMO.........

Sell your existing wheels and purchase a set with 4.5 BS (Back Spacing) wheels.
This is the correct way to eliminate tire rub and do it in a safe and professional way IMO..........

It's a choice, your choice!!!!!!!!!

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