Are the fluid lines that come out of the 4L80E opposite of the 60E? Which goes out to the radiator and which is for fluid coming back in to the trans? My tranny runs lots hotter than the 60E did, and I'm thinking that it's because I have the fluid routed to the external coolers first then through the radiator. The tranny temp seems to always stick close to engine temp (saw 225 towing this weekend, and thats about where coolant temp was too), where as before it rarely got above 165 or 170 or so.

 

You went to the lake this weekend, bastered! How come you never went when I was there?

 

Cause it was cold! Come back and go with us next time.

 

Lake pleasant?

 

Bartlett...less people

 

What year is your case? All center lube cases the front line is pressure. If it is an early case bottom line is pressure. Good luck!

 

Not sure - how do I tell?

 

you can tell wich line is the feed by starting the truck when cold and puting your hands on the lines. see wich one gets warm first. thats the feed line.

 

Duhhhh I can't believe I didn't remember that. Thanks for reminding me!

 

WOW! Sounds like you know your trannies. You would be looking for a job? You are correct about the lines getting warm. I never look at it that way but that is a good idea.