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Biggest tire size on stock 20s

969 views 1 reply 2 participants last post by  Swank715 
#1 ·
What's the biggest tire that can be put on stock 20x8 wheels without a lift on an '07 FX4?

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#2 ·
Ive got 37x13.50r20s on a stock wheel on an 06 F250. Ive got a leveling kit in the front and blocks in the rear and i barely rub. Ive run two sets of this size and never had issues with wear or sidewall roll. Ive never felt unsafe doing it either. I believe since you have an Fx4 you can run 35x12.50's on a stock wheel. It may rub but trimming does wonders. I know with a leveling kit 35s do not rub at all.
 
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