Well I ended up having some tranny problems in the dually. I didn't know this about 4l80e, but there is a bushing in the tailhousing that looks like a connecting rod bearing. It's just lightly pressed in there and it's easy to knock it out when installing the driveshaft which is what I did, causing the shaft to be loose and leaking fluid.
So I just needed to remove the tailhousing, re-install the bushing and install a new seal.
Oh and I let out a little frustration once I fixed that thing and left a BEAUTIFUL 100 yard strip of rubber on the pavement.
ya, it's fixed and is running great!
We are loading everything up today and leaving town headed for Moab tomorrow at 5pm. I think we will stay in Grand Junction Tuesday night as our reservations at the Canyonland campground don't start until Wednesday.