Not sure if the 07's are the same but on my 02 I just had to pull the mounting bolts on each side of the frame and drop the diff down without having to remove the entire thing. It wasn't too hard, there was just enough room to get the pan out. And I installed the pan gasket with the 2 pop rivets, they helped hold the gasket so it didn't move during reassembly. The Fel-Pro I used was a quality gasket.