4l80E Cooler

[arupert]

I once used a ac condensor as a tranny cooler and it worked great but did have a pres drop resulting in poor cold performance. I noticed the flat plate type advertise less preasure loss and that they seem to take a small size for the same GVW rating. While cruising the juny yard I noticed that most HD asian automatics use a fat cooler with less but wider passages, also that HD hydrolic equip use something that looks llike a heater core.
Are the thin plate type built just for ease of installation compromising absolute efficency?
What type of cooler do you'all recommend?

 

[docdray]

well, pressure is important, too little and slippage occurs as you know. as far as what I run and researched-I purchased a 28k lb gvwr cooler to replace my original front, then moved the original to under the truck with a thermosat. Yes its a moderatly insane twist, but the pressure is ok, and temps run 160 normal and 200 with trailer in summer. A TCC lock switch is important. also, make sure the tranny case is clean as a thick dirt/grease covered case will run warmer.