- Apr 3, 2014
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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!
Doesn't this tell you that the DTR and shift lever aren't really aligned? Or perhaps the length of the DTR throw lever is different between the 1998 and the 2003?Yeah it does not shift. the transmission is good i knew the girl who drove it and crashed it. I drove the car after it was wrecked and the trans was fine. I've tried aligning the range sensor multiple times and still nothing. It starts only in park and drive.
There's a guy on another forum that got the 3650 to swap into a 96-98 with a functional speedo.
http://forums.corral.net/forums/gt-sohc/1725610-96-98-t-45-3650-swap-done-info-whoever-else.html
not sure if it would help or not on an auto.
That was me. For the auto, the 98 auto uses two sensors, an OSS and VSS. Other than that, the 97.5-03 transmissions are identical.
But I can tell you why your swap failed... The ECU uses MPH and Throttle position, along with RPM to calculate shift points. With a stock tune, MPH comes first and if you don't have the OSS signal converted to VSS, your car will never work properly in a 96-98 with a 99-up trans. If you haven't already, bug a Dallas Speedcal into the OSS sensor wires and get your correct dipswitch setting. You can find a quick how-t0 on that via the link in the quote above. It will be your current revolutions per mile times your rear gear ratio times 6 since the 96-03 4R70ws use a 6 pulse OSS wheel. Plug that number you get into the Accutach calculator and it'll spit out the correct setting.
As stated early on the VSS and OSS sensors are different. They work differently (VSS generates power the OSS needs power). They are wired differently. The generated signal is different. How the signal is used is different.I traded out the tail shaft from my 1998 trans to my 2001 trans so it is running both a VSS and OSS sensor. and is getting power, I got a little buz from it the other day.