Okay, so when looking up the parts, I'm getting conflicting results. '98 5.2, pcv in passenger valve cover, I need a new pcv and the matching grommet. Does anybody know what the Mopar original part numbers were so I can cross reference? When I look up the parts I get various results, all saying "this will fit".

 

You should just get the PCV valve from the dealer, last I checked, it was less than 10 bucks, and it's actually the correct flow rate.

 

Im thinking I'll do that, stick to Mopar especially since the grommet and valve aren't that expensive.
One more question, is the 90° elbow on the other valve cover that is connected to the "hat" on the throttle body just an elbow? Is there nothing inside it?

 

Just an elbow. PCV system draws air from the box.

 

Thank you so much for all the help! I found and ordered the pcv valve and the grommets, all Mopar.