Trans Coolant Line Return Question

[beautifulisblue]

Hey folks searched on here but didn't find the answer I was looking for, most likely user error.  

 

About to install an auxiliary trans cooler with fan under the bed, mostly for slow 4x4 driving.  I live in Nevada and it gets hot.  I've got a Mishimoto replacement cooler up front.  I drew three hunt tags here in Nevada and with 333K on the clock I want to help it out a bit.

 

I wanted to double check that the return line on the transmission is the rear line as it attaches to the transmission, correct?  #3 in this image.

 

Thanks in advance,

 

Adam

 

Edited June 12, 2020 by beautifulisblue

[01cummins4ever]

Correct # 3 is the return.

 

when installing the auxiliary cooler under bed, I cut the factory steel return line in the straight area before it 90’s into the transmission, then just loosen fitting on transmission and swing that fitting 180 . Then retighten to get line headed toward the aux. cooler,  gives your new auxiliary cooler lines straight back without unnecessary bends  

[beautifulisblue]

3 minutes ago, 01cummins4ever said:

Correct # 3 is the return.

 

when installing the auxiliary cooler under bed, I cut the factory steel return line in the straight area before it 90’s into the transmission, then just loosen fitting on transmission and swing that fitting 180 . Then retighten to get line headed toward the aux. cooler,  gives your new auxiliary cooler lines straight back without unnecessary bends  

Genius!