I had to pull the petcock on the '99. It leaked and the only position I could get it to stop leaking was in reserve. I ordered all the parts needed to rebuild the valve.... not all that much, but after getting it out the rest of it looked pretty bad, and the stand pipe was missing a filter screen, so went ahead a bought a new one. When I took the old one apart to see what gives it had a broken 'o' ring. I could have replaced it and probably will just to have a spare laying around. If you do decide to rebuild there's two part #'s you'll need. 3AC-24523-00-00 PACKING, AND 3AJ-24534-01-00 SEAL. They'll run you right around $7 bucks. The gasket that seals the petcock to the tank 4X8-24512-00-00 may or may not be needed. It's a judgement call on your part. Anyway it's another $2.50.... Hope this helps....