Well I decided that I need to change the head gaskets myself. There is no way I can come up with 4grand and I need my truck to go from NC to CA. So I'm going to do It myself and while I'm in there I'm going to seat the injector cups. Any advice pertaining to diesels in particular. I pull alot of gas engines and build them so I have a good understanding of mechanics and I have access to alot of tools. So any advice?