11/2 hours and a lot of sweat...no problems except for the return line...had to go back to pepe boys and get a larger connector...almost didnt have enough hose good thing i sighted out the install...big difference,went for a drive and pulled over got out and under and felt the lines ...a very noticiable difference between the two temps on the lines...this should solve the problems i,ve noticed with the heat and the tranny....hayden#404 H.D. 3/4x71/2x151/2 plus fittings...

 

Which model/engine do you have? I have a 01 ext-cab 4.6. I want to install a tranny cooler.

 

you can feed the lines through the bottom corner of the condensing at the drivers side...come out right where the lines are