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shift points

  1. New tires and changing shift points

    99-03 7.3L General Discussion
    Whats up PowerStrokers!!! I have a quick question. I just lifted my 2002 F250 7.3 PSD and want to run 315/75/16. I know that my gears in the differentials are 3.73. Should I consider getting my shift points changed to compensate for the bigger tires? If I should can I do it myself with a...