[dclee]

Originally Posted by ShottsUZJ100

On all three of my Cruisers we always lube the zerks until the grease starts to ooze. Never a problem.

Zerks in the U-joints/spiders should ooze grease out of the seals. Absolutely NOT in the shaft itself! A squirt or two of grease in there is fine every so often. But if the shaft is moving (expanding) as grease is injected, that's bad.