woody69

Its a long story but I need to know how to wire the 4l80 round plug from my harness so a 4l60 will work in my car. I was onced told by wait4me that there is only two wires that need to be changed to make it work. Wait4me rewired my harness (a factory truck harness 6.0 4l80) for my car and programed the cpu. Now, however he did it it does not use the input speed sensor. There is two extra pins in the 4l60 that I don't have in the 4l80.On another complete harness I have for another project I have a ls1 4l60 harness and the two extra wires are tan with black marker and goes to red42 and brown that goes to red2. Another question I have is can I just use the ls1 harness with a truck cpu with minor reprograming. Thanks Woody