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Wheels & Tire Question

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Old Feb 26, 2008 | 10:34 PM
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roos3342
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Wheels & Tire Question

I have a 99 F350. Can anyone tell me what the stock backspacing is on the factory wheels? I think its somewhere around 4.6" or so based on doing some searching on this forum and other site around the web.

I currently have 33x12.5 BFG all terrains on Eagle Alloy Wheels with no rubbing.

I am thinking of going with Mickey Thompson 20" Wheels that have a backspacing of 4.5". If I did this, I would run an equivalent tire size to what I have now, which I believe will be around LT305/55R20. Can anyone tell me if they think this would be a bad combination, or if the tires will rub? I currently have some of the fender and the front bumper trimmed and I don't have a problem trimming a little more if need be.

Is anyone running this combination, or something close they could attach pictures of?

Thanks in advance!
 
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Old Feb 26, 2008 | 10:52 PM
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From: Parker, CO
It should be fine. That's the same backspacing I'm running on my wheels, and they are 20x10's. Specs on mine are 4.5" backspacing, and -25mm offset.
 
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