Side by side photos of 30" tires vs. 31" on stock - Jeep Wrangler Forum
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Old 06-30-2013, 02:20 PM   #1
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Side by side photos of 30" tires vs. 31" on stock

For anyone out there who wants to see a comparison on how 31x10.50x15 tires look vs. 30x9.50x15, here are a few attached below. Before I started researching which ties to buy, I was playing with the idea of going up a size but didn't know exactly how it would look. This is a 98 TJ with stock suspension.

BEFORE:

Front angle - 30"

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Side - 30"

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Front wheel - 30"

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Rear wheel - 30"

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AFTER:

Front angle - 31"

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Side - 31"

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Front wheel - 31"

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Rear wheel - 31"

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Old 06-30-2013, 03:39 PM   #2
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any rubbing when at full lock ?

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Old 06-30-2013, 03:46 PM   #3
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Here's 29" next to a 31"
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Old 06-30-2013, 04:42 PM   #4
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any rubbing when at full lock ?
If you have rub on full lock just add a couple of washers to each wheel stop. That's all I had to do.
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Old 06-30-2013, 09:12 PM   #5
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Yes it does rub on fill lock. And I have read in other posts about the washers in the bump stop technique, but was wondering what the smallest body lift would be on stock suspension to clear 31s without sacrificing turning radius?
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Old 07-01-2013, 01:50 AM   #6
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Yes it does rub on fill lock. And I have read in other posts about the washers in the bump stop technique, but was wondering what the smallest body lift would be on stock suspension to clear 31s without sacrificing turning radius?

It's more likely the backspacing of your wheels, I don't think the body lift would help ya out.
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Old 07-01-2013, 08:43 AM   #7
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you won't notice a washer or two in your turning radius.
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Old 07-01-2013, 10:17 AM   #8
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Yes it does rub on fill lock. And I have read in other posts about the washers in the bump stop technique, but was wondering what the smallest body lift would be on stock suspension to clear 31s without sacrificing turning radius?

You are mixing up things.

Bump Stops - Are the the cushioned stops in the coil springs that restrict suspension travel

Steering Stops - restrict the amount turn of the steering knuckle and therefore the turing radius of the vehicle

Lift (body or spring) has nothing to do with turning radius.
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Old 07-01-2013, 05:14 PM   #9
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Neil F. - Thank you for laying this out... I needed this distinction to be explained to me. What I was concerned with was losing turning capability if I use a bunch of washers to stop the rub. One of the coolest things about these wranglers is their ability to turn into tight quarters with ease.

So, understanding that "a washer or two" will go unnoticed, I will try this technique first and see if I frown at making wider turns even if they are just barely noticeable. Plus it will probably cost one trip to the junk drawer and a couple minutes with a wrench.

However, I am still unsure if a body lift would not only solve the rub problem but give the tires just a bit more headroom for the light trails? And if yes how many inches would totally clear 31s? Not sure what the backspacing is but I believe the wheels are stock, so whatever that is? Body lift only please. The reason why I ask these questions is because even if the washers do work, my thought is that without lifting at least the body up, even just a tad of articulation would cause the tires to ram into the inside of the wheel well or fender. This is all speculation - no experience off the road yet unfortunately!
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Old 07-01-2013, 08:43 PM   #10
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Just my 2 cents: repaced stock rims with 17x8's. not sure of backspaving but picture 1 shows them with AT 245-70-17's. if you do a conversion, they are about 30.5 " tires. I like these because i do alot of highway driving, and thicker M/T's would be un-economical. I used to get a slight rub at full turn, and it was a bit more noticable in reverse. since the lift, the rub is gone. The second pic is with 2" r/c bl. Sorry about the pics being messed up. You can tell which pic has the lift.




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Old 07-09-2013, 08:14 AM   #11
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I'm getting the Destination A/Ts soon myself. Are these the 31x10.5? I want to get as wide as I can to handle sand. No lift, and a 9-year-old lab will keep that from changing soon - hopefully several more years.
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Old 07-18-2013, 03:04 PM   #12
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Yes these are the Destination A/T 31x10.5. I recently learned that different tires have different 'hardness' rated as 'A', 'B', or 'C'. I know literally nothing about this and how it translates to performance. I believe the 'C' tires are harder and 'A' is softer. Maybe someone else with more knowledge on the topic call give more detail. The tires pictured in this thread are 'C'.
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Old 07-18-2013, 05:01 PM   #13
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Old 07-18-2013, 05:35 PM   #14
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Quote:
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side by side of 29s to 33s
Geez night and day. Good one!
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Old 07-18-2013, 07:33 PM   #15
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I did the 30" --> 31" and 9.5" --> 10.5" change. Firestone Destination A/T. No lift. No rub. No steering changes. If I'm doing trails with rocks, this wouldn't work - it's too close. I'll have a sand report next week.
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Old 07-18-2013, 10:59 PM   #16
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I did the 30" --> 31" and 9.5" --> 10.5" change. Firestone Destination A/T. No lift. No rub. No steering changes. If I'm doing trails with rocks, this wouldn't work - it's too close. I'll have a sand report next week.
I currently have 30 x9.5 and I m looking 31 x 10.5 ... I have a 2" OME I think I will be ok but it will be nice to hear from your experience..

Regarding the rubbing I guess a spacer will do it..

Just hope the tire don't go too much outside from the fender so I get the yearly mechanical inspection pass..
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Old 07-20-2013, 11:25 PM   #17
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Sand and wrt driving reports:

The beach we went to today was two-tiered, with about a 3' drop from the high plateau to the low. Watched several guys have fun gathering a bit of speed to get back up, and a 4Runner need to try three times to get it (mostly used error). Zero trouble doing it under nice, slow control (8-month pregnant wife...) with the new A/Ts.

Got rain OTW home. 50-60 MPH mostly, and no issues at all. Felt nicely connected. A little wet (no doors or soft top windows), but in control.

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Old 07-21-2013, 06:58 PM   #18
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Big improvement for that blue jeep and I will bet its more fun offroad too.

That yellow jeep looks sharp sitting on the gray Fla. sand too.
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Old 07-21-2013, 08:14 PM   #19
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The first pic is with 30x9.5 the second is 31 inch with same rim those rubbed at full turn. The third is 31 inch with offset rims no rub.
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Old 07-21-2013, 10:51 PM   #20
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I needed this distinction to be explained to me.
Maybe not but I like to explain things so everyone knows.
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Old 07-24-2013, 05:39 PM   #21
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Sand and wrt driving reports:

The beach we went to today was two-tiered, with about a 3' drop from the high plateau to the low. Watched several guys have fun gathering a bit of speed to get back up, and a 4Runner need to try three times to get it (mostly used error). Zero trouble doing it under nice, slow control (8-month pregnant wife...) with the new A/Ts.

Got rain OTW home. 50-60 MPH mostly, and no issues at all. Felt nicely connected. A little wet (no doors or soft top windows), but in control.
Which beach is this?? Looks like fun. Great report, too
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Old 07-25-2013, 12:34 PM   #22
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Which beach is this?? Looks like fun. Great report, too
Porpoise Point in St. Augustine. Love it there!

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