Speedo is off, new tranny

Discussion in 'SN95 4.6L Mustang Tech' started by TheSalad, Dec 5, 2003.


  1. TheSalad

    TheSalad New Member

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    I just put a Tremec T45 in my 96 GT, replacing the Borg Warner. So, I hooked up the speedo and everything, but it reads insanely fast, what do I need to do to fix this?
  2. merc123

    merc123 Active Member

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    Let off the gas. Also, where'd you get a speedo to says "Extremely Fast"?

    Is there "Slow", "Barely Moving", "You'd better slow down now" on it too?
  3. Sam98

    Sam98 Founding Member

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    Get the correct VSS for that transmission maybe... :shrug:

    Did the 96 still have a speedometer cable?
  4. TheSalad

    TheSalad New Member

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    Yeah, but the new tranny has a magnetic VSS whereas the old Borg Warner was mechanical...I just need a different speedcal with settings able to adjust that high.

    Any more comments?
  5. TriBlkCobra

    TriBlkCobra Founding Member

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    TheSalad, I think you've already got a a SpeedCal right? If so get in touch with me and we'll arrange to swap out the PROM with the software load to upgrade it to an ER SpeedCal. What you've done is put a 99+ tranny in your 96. The speedo scaling is VERY different on these two trannys but they are both still electronic. Dont worry its easy to fix.
  6. TheSalad

    TheSalad New Member

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    Okay, if you have AIM my name is TheSaladClay

    I am leaving for Brazil for 2 years on Dec. 9th, and my last day to get on the computer is Dec. 8th. I hope you get back to me by then.

    Thanks!

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