the 700r4 may hold up, if you REALLY beef it up. then you have to mod the TQ adapter ring.
a 2wd 4l80 e can be converted by changeing the output shaft.
a used 4l80e is 650 around here (4wd). the computer is 900 for a compushift. tq converter is 300.
isnt a 700 around 2000 for a "beefed" up one? then 300 for a tq converter.
the 4l80, without a doubt is stronger.
the 700r4 does work, i have driven it about 40 miles so far.
I am highly considering swapping to the 4l80 before i do any long distance heavy towing. I just need to research differences in years for the transmissions. I will probably just run a 2wd transmission and convert the output in the future if i go 4wd.
I do like the idea of being able to control the shift points with the aftermarket controller. car-part.com has the chassis control box listed in places for 35 bucks, so that would def get me going. does it just need a TPS and a tv cable to work?
some people say the 4l80 sucks mileage, any clue if it's true?
how many miles would i expect out of a used 4l80? is it worth buying one with 100k on it?