closed knuckle question?

[rossboss]

How are closed knuckles lubricated? I tore my 65 chevy K10 closed knuckle front end apart today and was a bit surprized with what I found. When I took the cover off the front end I found a sludge mess and when I removed the axles I found that they had been greased. Apparantly someone had removed the plugs on the side of the knuckle housings and filled them with grease, with no seal between the closed knuckle housings and front end gears the 90 wieght gear lub and grease mixed. What a mess, is this the right to lubricate the knuckles, it sure doesn't seem right to me.