so to make a long story short, I didn’t replace my pushrods when I did the head studs and gasket and now I’m back into it replacing pushrods but trying to avoid paying for the tool.. so can I loosen all the head studs and pull rocker arms and then replacing the pushrod to then re torque studs in...

I'm taking a guess on having a broken rocker, what's your guys thoughts? 08 F250 6.4l. It's got a dpf and egr delete, sct tuned with IDP custom tune. I noticed a sounds coming what seemed to be threw the intake, a popping sound, also I can hear some tapping/rattle on the passenger side valve...