I done one last week. The repair instruction says to remove the intake. Thats a lot of work.I did not remove the intake when i replaced it.
Jack up the truck so that the suspension hangs down. Remove the tire, and the plastic wheel well shild. And of course disconect the battery. From the little space there you can do it. I had to remove the knock sensor. and there is a bracket and an a/c hose in the way you have to work around if I remember. It is tight,But it can be done. Took me about 40 minutes but that was my first one.