I have a '99 Ultra-glide and I'm noticing a slight (for now) drip of oil coming from the stator plug, at the case. Nothing big, a drop makes it to the garage floor every couple of days. The front of the case at the plug is oil wet but not anything major. Oil levels are normal and at this point it's more a nuisance than a big deal. Anyway, to me this seems a little odd to be considered normal age, is there a seal near or behind the stator I'll need to replace? I have the HD manual and can't see anything in there about a seal either at the stator or overhauling the lower end sections. Any enlightenment could help thanks.