03 Cobra Tremec Tranny Swap Problem

Discussion in 'SVT Forum' started by Tim Harden, May 17, 2007.

  1. Tim Harden New Member

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    I replaced the Tremec trans in my 03 Cobra with a Tremec TKO Plus built by Sean Highlands, it was originally built for a 98 Cobra. The Stock 03 Tremec had an electronic / magnetic speedo sensor while the Tremec TKO Plus I put into the car has the electronic speedo sensor with a plastic speedo gear on the end of the speed sensor. The wierd thing is the electical plug on the wiring harness plugged right into the wiring harness on the speed sensor on the Tremec TKO Plus.

    The problem I'm having is the speedometer will only go up to about 20 MPH. Does anyone have any suggestion on how to fix this problem, without taking the TKO out of the car splitting the case and install a steel speedo gear into the trans then re-use the electronic / magnetic speedo sensor out of the stock 03 Cobra Tremec??????
  2. 98stangalang4v New Member

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    hahaha! i am doing just the opposite... over the weekend, i put an 03 cobra t-56 in my 98 cobra and at 20 mph, mine jumps to about 140!

    i am listening for an answer as well... :shrug:

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