Pop quiz, which cooler line on the A340H is the output and which is the input? Is the one toward the front the input? google and forum search were no help yet, I may just disconnect one and see which way it squirts.

 

If I remember correctly from the last time I did an ATF replacement, the fluid enters the radiator on the passenger side and leaves the radiator on the drivers side. I am 86.482% certain of this, but can't be positive. Just follow those lines back and see where they enter the transmission.

 

that's just what I'm asking, does the return line enter the front or rear of the tranny? 86.482% is pretty precise!