So after all my reasearch, I'm pretty confident I've got a leaking STC fitting on my 05 6.0l causing my hard start cold and harder or no start hot. So what I'm looking for is any advice from anyone who's familiar with the procedure. Could use a step by step, as well as what else I could or should do or check while in there. Do I need any other gaskets or o-rings for the R&R, or is everything reusable unless damaged? Thanks in advance for the info, any help is appreciated.