New guy

[Blott4]

Hope I post this in right place and image works. After reading a lot of info on this great forum I decided to pull the valve cover on one of our trucks to inspect the cams and adjust the valves.
Found two bolts completely loose and backed out that hold the injector rocker shaft for cylinders 1-3. Try to make a long story short we bought this truck used (in 2014?) with about 400k miles its a 2005 pete 379 with a cm870. After running it a year i think it was (we only put about 5k a year on our trucks) we had the truck inframed at a local private owned repair shop. It cost us a fortune and i wish i had done the inframe myself but didnt have the confidence back then. Anyways after seeing these loose bolts (this is the first its been opened up since inframe) i wonder what else is fubared in this thing. I know i need to replace the jake harness as the woven loom is deteriorating along with the exterior engine harness loom.
We farm in upstate NY and have 5 trucks all with different engines, haha, that i get to keep alive.