Dr1rrrr
Newbie
I have a 1998 Sierra with a 4bt and a turbo 400 and I want overdrive so I was thinking 4l80e but I have to figure out the transmission controller. So I saw a article by sloppy mechanics where he used a tps and rpm signal from the engine on a 0411pcm and all the wiring associated with the transmission and it worked as a stand alone controller. What I was wondering is if the stock 98 pcm could be used in the same way mine is still in my truck I currently use it to run the AC so if it could be used for that trans that would be nice. I looked around on the forum fro carb conversions cause that would be very similar to what I'm trying to do but it seems like everyone just talks about doing carb conversions and then gets talked out of it.