33x12.5 on 15x7? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-04-2007
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33x12.5 on 15x7?

Is it possible to fit 33x12.5 on 15x7 wheels?

I have 32x11.5 on my 15.7s rght now..If I wanted 33x12.5 would I have to go to 15x8?
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Old 04-04-2007
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I've seen guys run 33x12.50's on their alcoas before. You can do it, but I would recommened a 15x8 or 15x10.
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Old 04-04-2007
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i have that mounted on my spare.
its going to wear very bad. the tire is very rounded and the middle is only touching the ground.
i would do it.
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Old 04-04-2007
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yes its possible but definitely not reccomended. like stated above they won't wear properly and will be much more likely to seperate.
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Old 04-04-2007
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I ran my 12.50s on the stock 15x7s for a few months, it'll be fine if you keep track of your psi and eventually upgrade to 15x8s
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Old 04-05-2007
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I could just sell the rims I have now and put that towards new 15x8s..
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Old 04-05-2007
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yeah it can be done. I ran my 33x12.5 on my stock fords for a short while. I just told myself i would get new wheels before 5000 miles, and at about 4300 i got new ones.

Definitely gonna wear pre-mature, I was running about 25 psi just to get close to complete road contact and i was still about 1/2 and inch off the ground on each side of the tire. I went with 15x10's, b/c eventually i want to go bigger and 33's already recommend an 8.5-11inch wheel.\

vvvv-----You can even see in the first pic, that rear driver tire has no dirt on the very edge of the tire.

Last edited by BigBlueEDGE03; 04-05-2007 at 08:23 AM.
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Old 04-05-2007
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depends on how you ride them, firefighterjosh has 33x12.5x15 on his 15x7 alcoa wheels and they tires are wearing perfect....

you just have to run less tire pressure it looks pretty good and the tires are wearing fine.
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  #9  
Old 04-05-2007
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it an definitely bedone, but id suggest at least 15x8's.
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