Tremec Magnum XL swap without Speedometer conversion

Discussion in 'Transmission & Drivetrain' started by Ruiner46, Feb 13, 2020.

  1. Ruiner46

    Ruiner46 Well-Known Member

    Vehicle(s):
    2016 CO GT PP
    Joined:
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    Colorado
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    I'm about ready to order a Magnum XL kit for my 16 GT. Has anyone done this swap without using the Bowler harness, Dakota box, or other speedometer conversion? I ask because I have HPTuners and I can make my own tune changes. Can I just get some pigtails and wire it up, or am I forced to buy one of these solutions? I think I can handle the reverse lockout, but I'm not sure about the speedometer.
     
  2. OP
    OP
    Ruiner46

    Ruiner46 Well-Known Member

    Vehicle(s):
    2016 CO GT PP
    Joined:
    Aug 12, 2016
    Location:
    Colorado
    Posts:
    262
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    I've been doing some more research and discovered that it's not really the speedo that needs conversion, but the output shaft sensor for torque-based control in the tune, and also for cruise control. I'm think I'm going to attempt to wire this up without any conversion box or harness. I'll post results eventually, but it will be a while.

    My first attempt will be to wire the 3 wire Mustang side of the harness to the 2 wire Tremec sensor. From what I hear, I should use the signal and ground, and leave the power disconnected.
     
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