little update to end the day.
got the rad/fan out of the car, and removed the what appears to be an aftermarket aluminum driveshaft. looks like a gm number but didnt come up on gmparts direct. (Three Rivers 12560725)
started bolting parts to the 6.0 so i dont misplace anything lol and placed the fast on top to get an idea.
also spent a good amount of time cleaning up the LQ9 to make it look a little nicer