Factory transmission cooler

[Hertzdaddy]

I have a 73 2wd Jimmy that I'm building and when it came to me the radiator was not installed. The two cooler lines from the tranny had been cut. The Jimmy has what looks to be the factory auxiliary trans cooler as well as a tranny cooler built into the radiator. The lines from the auxiliary cooler come through the front support on the driver side. Is this the factory location? How do the lines from the auxiliary cooler route to the tranny cooler lines on the pass. side of the radiator?

BTW, a build thread is coming soon.

Thanks.