15" wheels v.s. 18" wheels on 30" tires... - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 07-11-2005
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15" wheels v.s. 18" wheels on 30" tires...

would i be correct in assuming that if a 30" by 10.5" tire on a 15x7 wheel fits without rubbing on my xlt, then a 30" by 10.5" tire on an 18x9 wheel should most likely fit just as well?
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Old 07-11-2005
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makes sense...cuz isnt the 30 just the total hieght includeing the rim, and the width doesnt change... so i say that yea it shouldnt rub
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Old 07-11-2005
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yeah the overall diameter would be 30" either way, and the overall width at its widest would be 10.5, so i figured it would fit.

i just want to be POSITIVE before i drop all kinds of money on wheels and tires that dont fit right hehe.
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Old 07-11-2005
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yes true true, what kind of wheels are you sticking on it?
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Old 07-11-2005
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18x9" chrome boss 304 wheels:



and 30" toyo proxes s/t tires:



mmmmmhmmm, sexy. ;o)
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Old 07-11-2005
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when you getting them? I was thinking about that exact rim to go on mine!
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Old 07-11-2005
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I think someone on here has those same wheels. Anywho, the overall diameter and width of those tires is the same. Just make sure that you can clear the 9" wide wheels. Good looking combo though.
-- B
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Old 07-11-2005
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i'm ordering them tonite or tomorrow... i'm limited by a poor selection of 18" wheels that will fit on the ranger (well... also limited in that there are so few wheels i like)

they should be on by next week *hopefully* :o)
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Old 07-11-2005
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yeah i think ive seen those same wheels on someones yellow lifted edge on like 33"ers...
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Old 07-11-2005
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your only concern should be backspacing. If those wheels have a deep "FWD" backspacing you could end up rubbing the frame when you turn the wheels full lock. My Mustang wheels have a surprisingly deep 5.75" backspacing, and even with a 1" spacer they still rub VERY slightly at full lock.
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Old 07-11-2005
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the backspacing on these is +14mm.... hopefully its enough to work ok. i guess the worst case scenario would be that they rub like crazy, and i'll have to buy spacers to fix em.
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Old 07-11-2005
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Quote:
Originally Posted by barrman
the backspacing on these is +14mm.... hopefully its enough to work ok. i guess the worst case scenario would be that they rub like crazy, and i'll have to buy spacers to fix em.
assuming +14 is the offset, not the backspacing, that makes the backspacing about 5", so you might experience some minor rubbing at full lock. Most factory Ranger wheels range between 4.25 and 4.5" of backspacing. Its mostly the wider wheel (9" vs. the standard Ranger 6" or 7") that is causing you a minor concern.

I wouldn't let that deter me from getting the wheels, just be away that you probably will lose a slight amount of turning radius. The tires are slightly wider than the rim, so the tire should hit the frame before the rim does, so if you don't try to push it when it starts to rub, I doubt you'll see any damage or ill-effect, short of a little rub-burn on the inside surface of the tire, which no one sees anyway.
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Old 07-11-2005
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oops, yeah i meant offset... i figured i'd lose a little turning radius, but definitely worth it to replace the stock 'car tires' on my truck heh.
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Old 07-11-2005
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man thats gonna look good.
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Old 07-11-2005
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thanks.... thats what im hopin for :o)
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