An auto car on a tow dolly?

In prep for making the trip, I got the trans cooler in the Dakota. I followed the recommended method and installed it downstream from the radiator, still keeping the radiator in the loop.

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Before that I dropped the trans pan and changed the fluid + filter, but tbh the old fluid was still red and no metal shavings + barely any gunk in the pan

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That's a good sign I guess, the trans is good to go.

After everything was changed and installed, I ran it down the road & up the hill then back a few times. Let it cool off in between, let fittings and the pan gasket to wear in. Made sure pan bolts were tight as with the hose clamps. No leaks at all. Noticeable difference between the radiator outlet and the return from the cooler. Going with 6 quarts was the right call too, after warmed up the fluid sits at 3/4 the "OK" range on the dipstick. Trans is ready to roll. Rewired the trailer light hookup, for some reason the trailer light controller isn't picking up right turn signal (which is clearly working).