Great install! I will re-look at my plumbing and see if I can do similar to you. I was planning on cutting into the return line and using the two ends I cut off the existing cooler piping as a connector. We'll see.

 

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At the pressure the transmission generates, and the back-pressure the cooler and output line causes, it won't just trickle along the bottom. It also allows the fluid more time to flow through the cooler and expand up if needed, rather than just all being forced straight through at the same velocity and losing cooling time.

The output line is noticeably cooler (barely warm to the touch) than the input line (hot), and the transmission reacted instantly for the better once installed, so if it's happy with it, I'm happy with it.

 

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Funny thing about that, I've seen many OEM tranny cooler installs where the fittings are pointing down.

I keep forgetting to take pictures of my cooler. :/

 

If the fittings are pointed down, but the internal plumbing takes it right to the top, then it doesn't matter.

 

Technically speaking it does matter.
You can get by with it, but you are not taking full advantage of the equiment.
Air will be trapped.
My experience is not in auto engineering, but I worked over forty years in the chemical engineering business. You would never pipe a chemical process heat exchanger in that manner.

 

I'm talking about internal piping going straight to the top of the unit to a manifold, then the pipes running vertically or horizontally from the manifold. You would have to want to have to put together a good looking system with minimal external piping to do this.

To me, no different than running your external lines from the bottom of the radiator to the top of the cooler.

I understand about having the manifold at the bottom or the side with inlets at the bottom, that will leave airlocks.

 

I forgot I uploaded pictures of my tranny cooler, until I went to upload some I just took a day ago... lol

 

maybe I missed it, sorry if I did, but did you bypass the radiator cooler alltogether or did you run this one in series with it?