1998 Gt Tranny Swap From A 2003 Gt

Discussion in 'SN95 4.6L Mustang Tech' started by dylan sharkey, Apr 3, 2014.


  1. dylan sharkey

    dylan sharkey New Member

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    So my 4r70w auto tranny blew up in my 1998 mustang gt and i found a tranny from a 2003 gt. i need to know if that tranny will work in the 1998 gt please help!
  2. wmburns

    wmburns SN Certified Technician

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    Are you expecting a "plug and play" swap? If so, this isn't it.

    The 99+ model year uses the OSS speed sensor.

    The 98 and older uses a VSS speed sensor.

    The output of the VSS and OSS sensor are NOT compatible to each other. The wiring is different as well as the signal type.

    Not to mention the 4R70W is an electronically controlled transmission and there are differences in the controls.

    Expect problems if this swap is done.

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