To button up the thread, because I hate those threads without a resolution, I've got everything back together. Well, mostly.
The oil cooler is resealed and appears good. A couple notes on the oil cooler work. You can work the whole thing with both headers out and back in the truck without removing anything extra. You also can out the oil cooler back together by hand without mechanical means. I use assembly lube and body weight.
The thermostat didn't seal so I still have to monkey with that. Everything else appears good to go.
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