March 3, 2010can you go into the stock computer and change something to adjust for bigger tires for the speedo and tranny. maybe change the revs per mile on the tires or something? I have an `08 F150 FX4
Forums : F-150 (2004 - Up) : Big tires and speedo (157 Views)
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March 3, 2010I have a superchips programmer to adjust the speedo, it let`s you adjust by tire size.
March 3, 2010i know that tuners will do it, but can a for tech use a ford scan tool to do it somehow? Thanks