They have a revision on the Chain guides, doing a recall on them.
I saw a hemi at the local store my friend was working on, needed a new cam, had 350K miles on it in Landscapers 2500 Ram plow truck. Engine looked mint but one of the followers had worn and took out a lobe, of course guy had service contract and his cost was 100$, guess he was smiling saying Chrysler is my pit crew.