I'm about ready to replace the plenum pan on my '97 5.2 ZJ.
I'm wondering if there's anything else that I should do on general principle while I've got it that far apart.
It got a new water pump, bypass hose, and thermostat about 10,000 miles back.
And before anybody says "how do you know you need to replace the plenum pan", I can see oil through the throttle body among other things.