So I have one other test I'll try before taking it to a repair shop to get it diagnosed. I'm going to put the old belt on as it isnt worn or cracked. Maybe I was given the wrong belt for the truck when I bought it. Because the sound got worse after I put the new belt on. I'll keep you updated regardless.

well the dealership said it was an AC belt and tensioner. To which I said I could easily replace. Since that day forward it has not squeaked. Things is I didnt replace the AC assembly. At least it has stopped and i have new parts if it does decide to break

That is awesome. Sorry for delay in reply have been moving into a new home. Come to think about it I didn't even give any thought to the a.c. Belt or tensioner on these trucks. Good find and thanks for the update.