I have a 04 early build 6.0 and need to replace number 1 & 3 injectors. I have the #1 injector out but the #3 is stuck in the hole. Truck has obviously been worked on many times before I acquired it. The #3 injector is missing the ball washer on the bottom of the hold down bolt. Looking for suggestions on how to remove it?

I have rebuilt injectors, glow plugs, glow plug harnesses and valve covers gaskets on the way and should have everything I need to make this truck healthy again by next weekend.

Another note; the whole valve body came lose from the top of the injector, luckily I was able to find the two little bolts that hold it on. I just don't understand why it would come apart like that????