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Final tire question

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Old May 24, 2009 | 01:12 PM
  #1  
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Extacie
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Final tire question

Ok, I was lookin at some goodyear A/T at wal-mart and the largest tire size they had avalibale was: 265/70r/17. Above that it said 17". So is that technically classified as 17" or 33"s since it is 31.60" in diameter? When people say 33"s they do reffer to that overall diameter, right? With a little bit of trimming would I be able to fit these on a 1993 F150 4x4 ext cab?

Also, I like the wider tire look and someone was telling me something about backspacing I believe to make it stick out a little bit more. How does that work? If backspacing is correct then I will go research it a little bit.

And my friend has a dodge ram and he has 35"s on it and the tires look sooo much larger than these. It might be because the lift makes them look bigger? I am not sure.

Thanks, and sorry for so many questions, this should be my last one about tires!

P.S. Where is the cheapest place to get rims? (I am just making sure, but the rim for that tire should be 17" and the rim width should be 7-9", right?
 
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Old May 24, 2009 | 01:41 PM
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From: Sweetwater Texas
Well its gonna be classified as a 31x10.50'' maybe a 32x10.5'' if you were going off of the old style. The old way of measuring tires was for example 31x10.50 which meant the tire was 31'' tall and 10 and half inches wide.

Backspacing refers to how far back the bolting plate on the rim is. Careful if you get too much backspacing you'll end up with one of those funny looking Mexican Chollo curb rubbers.

If you want a wider looking tire then you are gonna want a 285 or a 295 or a 305 (the first number refers to width in MM), but the larger the first number the taller the tire will be overall unless you lower the second number. Or if you want the same width but taller then you want a 265/75 or 80 or 85.

Jegs has pretty good prices on rims, so does Discount Tire.
 
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Old May 24, 2009 | 02:30 PM
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Okay, but if I am getting 305 that is going to be very hard to clear with out a lift, right? Do you think I could get this tire to clear with out a lift? 4 BF Goodrich All-Terrain KO Tires 305/65R17 305/65-17:eBay Motors (item 360148641397 end time Jun-19-09 11:24:01 PDT)
Also, how is that pricing wise?
 
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Old May 24, 2009 | 02:36 PM
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Dean88
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From: Sweetwater Texas
305 makes the tire wider (roughly 12 inches), if it still had an aspect ratio of 70 it would be taller yes, but being is its aspect ratio is only a 65, it should be roughly the same height as that 265 70. Give me a second to find my calculator and I will tell you the exact size of that tire. On an F250 you can easily run a 33'' tire.
 
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Old May 24, 2009 | 02:42 PM
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From: Sweetwater Texas
Yes they will fit with no lift, but they may rub something on the inside (i'm not sure on a 4x4 but on a 4x2 it would be the radius arm) when turned 100%

Those would cross reference to a 33 x 12.50 old measurement.

Oh, on your quest for new rims, any rims off of the the pre 99 Fords will work, all of the Dodge 8 lugs will work, and some of the Cheby's will work, some of the older ones had a smaller center hole. Any of the aftermarket 8 lugs will work UNLESS its for the 99+ Fords which have a metric bolt pattern.
 
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