How do I replace them and where do I get them

 

I have to ask a simple question. Why do you need them?

 

I'm Josh on facebook that replied to your post. Can you put the pics here? They would show up a little better. I have the parts you would need.

 

The tip of the rocker all but one on the intake side are stiff and spin free but the last one closest to the cab pushes in and u can here pushing fluid back through the rocker shaft sounded like a pound rpm bases knock and that's the only thing I can find that would cause the knock. Kinda hoping they make a more aggressive cam for it