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Old 03-15-2012, 12:40 AM
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Mr.
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Default Tire size

I have 235 75 R15s all the way around. what size would be about 2 inches wider than what i have now? I would like to have about 10 inch wide tires on back.
Old 03-15-2012, 08:46 AM
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31x10.5 or 33x10.5

Dunno the metric versions off top of my head. So dunno what a 235xwhatever metric number is for 10 or 10.5
Old 03-15-2012, 01:17 PM
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Originally Posted by TheJcode
31x10.5 or 33x10.5

Dunno the metric versions off top of my head. So dunno what a 235xwhatever metric number is for 10 or 10.5
The metric equivalents of 10"-10.5" is any of these three widths: 255, 266, 275.

Stock 235/75 15's are about 28.87"x9.25", so that means something like a 255/70 15(29"x10"), 265/70 15(29.6"x10.4"), 275/60 15(28"x10.8).

Now those metric equivalents are mostly readily available according to my quick google search, the last one is a very common Mustang/Camaro tire, so the load rating should be a concern if you use your truck as a truck. And they are within the 3-5% height difference from stock that most tire places usually recommend so as not to knock the speedo out too much.

On my old 91 2wd S-cab LWB I put some very street oriented 31x10.50s in the rear and 30x9.50s on the front. I really liked the rake it gave. The speedo was off maybe 5km/hr or so, very minor but still noticeable.
Old 03-15-2012, 11:40 PM
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I just need to know what size is at least 10 inch wide and i would like the height to stay the same.
Old 03-16-2012, 07:19 AM
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Originally Posted by reyesah
I just need to know what size is at least 10 inch wide and i would like the height to stay the same.

Originally Posted by ndnJedi

The metric equivalents of 10"-10.5" is any of these three widths: 255, 266, 275.

Stock 235/75 15's are about 28.87"x9.25", so that means something like a 255/70 15(29"x10"), 265/70 15(29.6"x10.4"), 275/60 15(28"x10.8).

Now those metric equivalents are mostly readily available according to my quick google search, the last one is a very common Mustang/Camaro tire, so the load rating should be a concern if you use your truck as a truck. And they are within the 3-5% height difference from stock that most tire places usually recommend so as not to knock the speedo out too much.

On my old 91 2wd S-cab LWB I put some very street oriented 31x10.50s in the rear and 30x9.50s on the front. I really liked the rake it gave. The speedo was off maybe 5km/hr or so, very minor but still noticeable.

Did you even read my post?
Old 03-19-2012, 08:56 AM
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yes but 255,265,275's are all taller tires i dont need taller just wider.
Old 03-19-2012, 09:05 AM
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holy hell. bat man.........

you have 235/75R15's they are 28.87" tall with a section width of 9.25"
you need 255/70R15's they are 29.05" tall with a section width of 10.03"

anything else........................
Old 03-19-2012, 09:06 AM
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http://www.discounttiredirect.com/di...55&ar=70&rd=15
HERE.........

Last edited by fordtrucknut; 03-19-2012 at 09:12 AM.
Old 03-19-2012, 09:11 AM
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if you go up a section width number(the 3 digit number XXX/--R--) you have to go down one size on the aspect ratio number (1st set of 2digits ---/XXR--)
Old 03-19-2012, 10:14 AM
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^this guy went the extra mile with even providing a link....
I rounded off my numbers in my post.
Btw, OP, 0.18" or just about 3/16" difference in height is not even noticeable when it comes to truck tires....


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