40's on an 03 - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 04-15-2011, 06:07 PM Thread Starter
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40's on an 03

How much backspacing/offset would I need to fit 40x12.5's on an 03 F-350 without rubbing the springs ever time I turn a corner? How about 13.5's?

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post #2 of 2 Old 04-15-2011, 06:22 PM
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i was told that 4.5 backspacing is the best for leaf trucks....but im not sure when u get that big........
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