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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

widest rear tire?

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Old Aug 12, 2009 | 08:23 PM
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Question widest rear tire?

Whats the widest rear tire you can stuff under the back of one of these trucks with no clearance issue? on a 86' 2wd f150 for what its worth.
 
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Old Aug 12, 2009 | 08:52 PM
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31x10.5x15 gets awfully close with a load of fire wood, but it just squeaks by the fender in the back. That's with a 8 inch aftermarket rim. If you run a stock rim, that size tire will rub the radius arm up front in the parking light.
 
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Old Aug 13, 2009 | 08:59 AM
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11 inches with the 7.5 inch rim. I know; I used to run 27x11's. Seems like 11.5's are possible, but I don't know for sure. I do know 11 inches will work.
 
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Old Aug 13, 2009 | 09:54 AM
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This is a quote from my Lightning forum he is using 17x11 rims and a 29.5 tall tire and 14.5 wide. and lightly massaged the wheelwells
 
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Old Aug 13, 2009 | 10:00 AM
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It really depends on how you use the truck. With an actual load on a stock rim a 10.5 is about as big as you can get as franklin said.

No load, just as a play toy 12.5's look real good on a stock rim, stick out just a little.

Now if you start offsetting the wheel in towards the frame, you can pick up a bunch more.

I've run a 12.5 on a stock rim and it stuck out past the fender about 1" at the top. Keeping the lip in mind, you'd be at a 10.5 to actually get the tire in the wheel well with NO rubbing.
 
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