4r75w Ford 4r70 Vs 4r75
4r70w vs 4r75w transmission differences Basically a 4R70W has to be used with a 4R70W PCM, and a 4R75W has to be used with a 4R75W PCM. The front pump assembly was revised to a much more efficient 4R70W vs. 4R75W A look at what is best to use when repairing the solenoid regulator valve on the 4r70w valve body. ...