Thank you all for your replies and information.
When our mech pulled the tranny out they completely tore it apart to see what other damage was done. The converter had what they called the ring of fire on it due to the ring from where the metal heated up so fast that it changed the color. The center carrier had a nice groove worked into it about the size of a ball point pin. The steel bands had signs of metal to metal contact on them. The clutch plates were completely worn through as well.
So the whole thing got a complete rebuild.
When you're talking about floating out what do you mean?
While going up the first hill into the mountains on I-70 we dropped down to around 45 but I wasn't really pushing her though either. Pulling the same trailer with my Chevy Avalanche had about the same performance. Going over the pass she pulled along with really no struggles doing 35 which is where I was happy at due to the switch backs I didn't want to go any faster. Sure it downshifted into 3rd but I just didn't want to work it. I think that where it finally overheated at was when we got to the ATV staging area by Grand Lake CO which is a good 50 miles from the serious hill and about a good 10 miles of that is down hill and I just let her coast since I figured that would be a good way to let her breathe for a bit. The reason why we think that is the spot that she started to overheat was due to the fluid spot on the ground that I found the next day. Our camp site was still another 2 miles back in the woods from the staging area. On our way back home I checked the area of the top of the summit where we stopped at on our way over to see if I could find any signs of a spot there, and when we got back home I checked the fluid in the tranny and everything was still nice and red unlike the black that was pouring out of it.
Hopefully this will be a one time adventure (most of our first trips for the year usually have something happen lol) I'll report back in a few weeks with how she does with all new guts.