I am considering replacing the stock tires with 35X12.5 R18 E rated Procomp Xtreme AT's. I have the stock 3.73 gears and occansionaly tow a 25' toy hauler. Will the 35's kill the bottom end and should I get 4:10's? The truck has an 4" turbo back exhaust, 2.5" leveling kit, and the rest is stock.
My EX weighs alot more than your F350 and with the same gears and 35" tires towing up to 10k isn't any problem. 4" lift and stock intake and exhaust. Thats even before Cales tunes!
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