How to correct for larger wheels?

Discussion in '94-95 5.0 - Specific' started by PIXER, Aug 28, 2006.

  1. PIXER

    PIXER New Member

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    Ok, so I found out my odometer is off by about 3/10ths on this last trip I took.
    How do I correct that?
    My speedo and tach have been "off" since I traded for the car, but I thought it was due to the incomplete swap (car still have NON PATS v-6 interior wiring harness, same as in '94-'95 mustangs) (but has a '01 GT motor and underhood wiring harness)

    Have all parts to do swap, but its allot of work (time consuming)
    Is their anyway to adjust the settings?
    Original wheels were 15", these are 18"s, and no I dont have the 15's to swap back.

    Thanks for the help.
     
  2. 94gtstang50

    94gtstang50 Well-Known Member

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    Get a dallas mustang speedcal.
     
  3. Matt94GT

    Matt94GT Legend Retired Staff SN95 Supporter

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    I put on 18s and my speedo is off by about 5mph at 100, I just know that not worth the hassle of changing it.