265/75R15 vs. 31x10.5R15 - Ford Bronco Forum
 
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post #1 of 10 (permalink) Old 02-07-2011, 02:20 PM Thread Starter
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265/75R15 vs. 31x10.5R15

Are they the same tires and will both fit my stock 15 inches rims? I am looking at 4 that came off a Jeep Wrangler. I know Wrangler bolt pattern is not the same as FSB but wonder if the tires are the same. I need some good used tires at good price.

Additionally, if tires are stored indoor, will they have problem with dry rot? What can I do to keep them fresh and good?
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post #2 of 10 (permalink) Old 02-07-2011, 03:00 PM
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They are pretty close to the same size. They should be just fine on your stock wheels. Even stored inside they could have dry rot, if so theres nothing you can do. If not try to keep the sun off them and out of the weather as much as possible, like in a garage when not in use.
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post #3 of 10 (permalink) Old 02-07-2011, 03:23 PM
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265/75 is a 30" tire

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post #4 of 10 (permalink) Old 02-07-2011, 03:44 PM Thread Starter
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I just check..the tires are already mounted on stock ranger rims. I have no clue what that means. Assuming they are stock rims from Ford Ranger, they are probably useless for FSB, correct? By the way, it is stupid that there is no standard for lug nut pattern.
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post #5 of 10 (permalink) Old 02-07-2011, 04:10 PM
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Quote:
Originally Posted by OJ-Runner View Post
I just check..the tires are already mounted on stock ranger rims. I have no clue what that means. Assuming they are stock rims from Ford Ranger, they are probably useless for FSB, correct? By the way, it is stupid that there is no standard for lug nut pattern.
There is a standard for lug patterns.....hundreds of them depending on the vehicle
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post #6 of 10 (permalink) Old 02-07-2011, 05:20 PM
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The Bolt pattern for a Ford Ranger is 4.5 not 5.5 like most your full size fords' five lug applications. The wheels are the correct size and all, but the backspacing is less agressive, and the center hub is smaller. As the Ranger uses the 7.5 rear, and something like a Dana 35 front. Hope that clears that up for ya. And what you're looking at for Tires are only about an inch off. You'll get basically the same tire though. 1 inch isn't huge, but it's something you might wanna consider. I dunno, which ever set is more agressive ( I guess if you're comparing two sets, rather than just two sizes), and w/e gives you the best bang per buck.
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post #7 of 10 (permalink) Old 02-07-2011, 05:29 PM
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Bronco Info: 1981 300ci 6cyl w/4bbl conversion. 4spd NP-435 manual. 32" tires.
265 75R15 = 30.6" x 10.4"
Most 31" tires are usually 30.5" - 30.8"

They're virtually identical. I think the main reasoning behind the different size ratings is the 265 75R15 is usually more of a street oriented tire whereas the 31x10.5" has a more "truck" oriented tread.


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post #8 of 10 (permalink) Old 02-07-2011, 05:31 PM
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simple,

tires will fit

rims will not.

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Newest token Jeep owner....

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post #9 of 10 (permalink) Old 02-08-2011, 10:17 AM
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Quote:
Originally Posted by AbandonedBronco View Post
265 75R15 = 30.6" x 10.4"
Most 31" tires are usually 30.5" - 30.8"

They're virtually identical. I think the main reasoning behind the different size ratings is the 265 75R15 is usually more of a street oriented tire whereas the 31x10.5" has a more "truck" oriented tread.
Exactly. Optional Original Equipment was a P265/75/15 (P for Passenger Car). That was the size on my Bronco when I got it, and I just put on 31x10.5x15LT tires. No problem.

Just don't mix and match them.

--Otter
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post #10 of 10 (permalink) Old 02-10-2011, 03:18 PM
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Quote:
Originally Posted by ottergt View Post
Exactly. Optional Original Equipment was a P265/75/15 (P for Passenger Car). That was the size on my Bronco when I got it, and I just put on 31x10.5x15LT tires. No problem.

Just don't mix and match them.

--Otter
And the LT stands for Light Truck.


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