fbrown,
Thanks again for sharing and helping me to figure out what I need. Not quite sure what to do yet for my cruise control switching, I really appreciate the picture and info you posted here.
I contacted John at Speartech and asked if the LS7 MAF would be compatible with the harness and controller he's making up for me. John related that the harness could be setup for the LS3/LS7 MAF but using one in a non-factory intake duct would probably require some custom tuning, so I decided to go with the LS2 MAF that John recommends for ease of tuning.
Now, here are a few pics of the 4L70E trans taken by Vince at Finish Line Transmissions
http://www.finishlinetrans.com/transmissions/index.htm just before it was strapped down in the shipping crate. Vince is clearly proud of his work, this beauty is on its way here right now via truck freight:
Shiftworks tailhousing that converts 1998 and up 4L60E/4L65E/4L70E transmissions to a factory mechanical speedometer and still retains a functional VSS (Vehicle Speed Sensor). The guys at Finish Line commented on it, saying it was a very nice piece.
I can hardly wait to get my hands on it.
Another big piece of the puzzle taken care of.