This is topic 4R70W vs 4R75W transmission in forum Tech Talk at Northern California Ford Owners  .


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Posted by Smoked50 (Member # 9592) on :
 
Quick question, I currently have a 4R70W tranny in my car. Would I need to change the ecu in order to run a 4R75W which came in the automatic Mach 1's?
 

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Posted by BTLD GT (Member # 5229) on :
 
short answer is no your ecu will work just fine with it. long answer is that its actually the exact same trans with stronger internals for a higher torque capacity.

Daniel
 

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Posted by Smoked50 (Member # 9592) on :
 
Thanks bro. As soon as I find a tranny I'll let you know so we can set something up, if I don't find one I might have to rebuild my current one though.
 

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