Before doing anything, closely inspect the plastic hup-cap. I noticed a small leak, wiped ti away and it returned. When I removed the plastic hub-cap I noticed a hair-line crack. Went a local HDT parts store, bought new hup-cap, gasket, and a small bottle of 80W hub oil. The hardest part was cleaning spilled up old hub oil when I was finished.
Tightness, I tightened mine snug like you said, it just has to be tight enough to prevent leakage. NO gasket cement/sealer!
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy