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Old Sat, June 16th, 2012, 11:05 AM
fifity fifity is offline
Triple Whopper with Cheese
 
Join Date: Sep 2009
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Bringing this back from the dead. I am running 37's now and am having 4.88 gears thrown in. Truck originally was on 31.5's with 4.10 gears.

My wifes friends husband is a ford mechanic and I am trying to see if he will recalibrate the speedo with their computer.

Do I risk anything with the PCM being updates etc and compatability with my 6 pos chip?

Or should I just wait to find some One with an AE?