[donandal]

OK,
more questions,

My transmission ( 4l65E ) has two quick connect fittings that look something like this.

The radiator has two threaded ports on the side for the transmission cooler.

I think I would benefit with an additional cooler before fluid goes back to the transmission.

How much pressure is in these lines?

How do I connect to these transmission fittings?
What type of hose?
What type of cooler? How big?

I have no experience with this stuff, and there seems to be about a million fittings to choose from, of which I'm sure most would be wrong!

Thanks