Welcome to the herd!
Best to note specs for the Engine + Tranny + TransferCase + Diffs +...
in your profile+signature so folks aren't guessing when you've got a question.
2008 V-8 ( 4.6V-8? 281?), 5R55E tranny (methinks), 4X4. One piss-poor exhaust. I'm used to true dual-exhaust; hate that this truck currently has a single turd-pipe.