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Old 04-02-2010, 09:52 AM   #1
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Max size tire on 8X15 OEM wheels?

My newly acquired '97 TJ came with Michelin LTX A/T 30X9.50R15 on its 8X15 OEM Gambler alloy wheels.

I like the wheels and I want to keep them but the Michelins are useless on the soft and deep sand that I often drive on.

What maximum size tire have you successfully fitted on a 8X15 rim and is there a tire that will really grab on soft sand and still be relatively quiet on the road?

I'm tempted to go with a 32X11.50R15 but I want to hear your feedback as to size and brand.

Thanks all.

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Old 04-02-2010, 10:33 AM   #2
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You can only go 10.5" without spacers. The tires will fit, heck you can put 12.5's on 8" wheels, but gamblers have either 5.5 or 5" bs, and you will rub with anything bigger than 10.5.

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Old 04-02-2010, 11:02 AM   #3
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Originally Posted by InfernoGirl View Post
You can only go 10.5" without spacers. The tires will fit, heck you can put 12.5's on 8" wheels, but gamblers have either 5.5 or 5" bs, and you will rub with anything bigger than 10.5.
X2, InfernoGirl is right on with her advice.
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Old 04-02-2010, 11:04 AM   #4
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InfernoGirl is right. The height isn't the issue you have to worry about, it's the width. And as deep as the stock wheel set, nothing wider than 10" is recommended. If you spring for some cheap steel wheels with a 4.25" backspacing, you can run a 12" wide tire without issue.
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Old 04-02-2010, 11:10 AM   #5
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InfernoGirl is right. The height isn't the issue you have to worry about, it's the width. And as deep as the stock wheel set, nothing wider than 10" is recommended. If you spring for some cheap steel wheels with a 4.25" backspacing, you can run a 12" wide tire without issue.
I wouldn't run 15x10 myself, I'd stick with 15x8 for a Jeep that sees offroad use where the tires are aired down.
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Old 04-02-2010, 11:32 AM   #6
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I was referring to tire width, not wheel width. Should have made that a bit more clear.
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Old 04-03-2010, 06:29 AM   #7
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Originally Posted by InfernoGirl View Post
You can only go 10.5" without spacers. The tires will fit, heck you can put 12.5's on 8" wheels, but gamblers have either 5.5 or 5" bs, and you will rub with anything bigger than 10.5.

Thank you and absolutely agreed, yes the Gamblers have 5.5" bs.

Forgot to mention that I just installed a set of 1.25" Spidertrax spacers which make the bs now 4.25".

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