33s on stock rims - Toyota FJ Cruiser Forum
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post #1 of 13 (permalink) Old 11-25-2012, 11:50 AM Thread Starter
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33s on stock rims

Can anyone verify if I can install 33x12.5/17. On my stock 17" rims.



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post #2 of 13 (permalink) Old 11-25-2012, 12:13 PM
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Re: 33s on stock rims

The stock rims are 17x7.5 and a 12.5" wide tire should be mounted on an 8" rim or wider. Now, that being said, people do stuff 33x12.5s on stock wheels.

I did put my 305s on 16x7.5 rims for a bit. The tires were sucked in on the sides and bowed on top. I did not like the feel or the look. I went and bought 16x9 wheels and I was much happier with them.

If you are keeping stock wheels, I would stay with 285s.

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post #3 of 13 (permalink) Old 11-27-2012, 02:25 PM
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Re: 33s on stock rims

I'm running my 305/70R16 tires on my TRD wheels which are the same that you were running, 16x7.5, and I personally like the look and feel. So yeah it's just personal preference.

And the reason he brought up the 305/70R16 tire when you asked about a 33x12.50 one is because they are the same size basically. One is just metric and the other is not.

So you can run the 33x12.50R17 tire size on a 17" stock wheel, but you may need to to modifications like the body mount chop. Just keep that in mind. And there may also be rubbing on the upper control arm. So that can either be solved by getting a more low-profile, aftermarket uca or you could get wheel spacers. I personally went with wheel spacers to achieve a wider stance as well as clear the uca.

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post #4 of 13 (permalink) Old 11-27-2012, 03:31 PM
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Re: 33s on stock rims

Way too much sidewall bulge. I would not go under a 9" wheel with 12.5" tires. Steering response on the road will feel like you are steering with bungee cords, the tires will be directional (follow ridges in the road) and the tread will wear prematurely in the center. Go with 285's or get wider wheels.
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post #5 of 13 (permalink) Old 12-04-2012, 12:00 PM
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Re: 33s on stock rims

285/70/17's are 33 x 11.5, they fit the stock 17" rims nicely.

Better, if you have the room, go to 285/75/17, that gets you 34" tires on the stock rims, also 11.5" wide.

Unless, of course, you really have to have 12.5".

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post #6 of 13 (permalink) Old 12-04-2012, 01:34 PM
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Re: 33s on stock rims

Can you put 33/12.50/17 on a 7.5" wheel... Probably. Is it safe? Probably not.

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post #7 of 13 (permalink) Old 12-04-2012, 01:42 PM
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Re: 33s on stock rims

May also depend on the tire. Some tire run smaller or larger than others!

a 33/12.5/17 really doesn't look all that bulged on the stock alloys....

You will probably need a body mount chop though.


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post #8 of 13 (permalink) Old 12-04-2012, 02:12 PM
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Re: 33s on stock rims

Oh man, this is the first I've read of 12.5 inch tires not being a good or safe fit for the stock width 7.5 inch wheels.

Now I have to do some of my own thinking, wanted to stick with my '12 TT Wheels, but I also wanted some big ol' 12.5 width tires. Gotta look into new wheels... many questions. How much to spend, what to do with old wheels, how wide, backspacing calculations, stick with 16 or go to 17... Argh! My life just became more difficult. Chaos!!!

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post #9 of 13 (permalink) Old 12-04-2012, 02:22 PM
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Re: 33s on stock rims

You'll be fine. Few tires actually will measure true to width and many folks have ran 12.5" wide tires in the past on narrow rims. Ideal no, dangerous...hardly from what I've seen. Mfgs usually provide a recommended wheel width for their tires, most seem to be 9" or so for 12.5" tires in 35s or larger. Few folks actually run wheels that wide. Most wheels folks tend to run are 8-8.5" on 12.5-14" wide tires.
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post #10 of 13 (permalink) Old 12-04-2012, 03:34 PM
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Re: 33s on stock rims

stock JK wheels are 17x7.5

35's with stock wheels post em' here

Lifting does not remove the body mount from the path the tire takes through the wheel well. Lifting does not move that path around the body mount. Lifting only sets the starting point of that path partially below the body mount giving the illusion of clearance. Only alignment and body mount chop can increase tire clearance between the body mount and tire.

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