so i replaced all 8 injectors myself this week. the job is really easy and if you are considering doing it yourself and have any sort of mechanical experience dont even think twice. i was worried getting into the job and i was a breeze for me. A few things to add to the write ups i followed, instead of prying the injector out with a crow bar, thread a high pressure line back on the injector and wiggle it back and forth and it will pop right out. Start with the passenger side. its much easier to do and once you know the lay out of it, it will help with installing the drivers side. I didnt see anywhere in the write ups i read about using Vaseline. Brent told me to use Vaseline on the copper washer on the injector and that helped keep it on when you set the injector in the cup. using Vaseline on the high pressure line where it contacts the rubber seal on the valve cover made turning it by hand much easier when reinstalling. Also, TAKE YOUR HOOD OFF. it takes 5 mins to do and makes 100 percent difference in working on the truck. big thanks to Brent at Lincoln diesel. i called just about everyday asking him dumb questions and he always had an answer for me. i was able to get the whole job done in less than a week of just working on it when i got home from work.