[Dave at Pelican Parts]

Disassemble the joint and inspect it all. Rags or paper towels to get most of the grease, then solvent of your choice to clean it the rest of the way. Cracks or galling is bad, a little discoloration is OK. A regular Moly wheel bearing grease is fine, but there are some synthetics out there that are supposed to be really nifty. And $$$.

Re-assemble, and work in the specified amount of grease (it's in the manual). I forget the exact amount, but work it into the joint itself--don't pack the boot full.

Note that the joint goes together two ways. One way it will pretty much lock itself together so it doesn't move, the other way will let it move correctly--the inner race will pivot and will be able to slide in and out a bit. The difference is the way that the inner and outer race are aligned to each other. Make note of the way the slots in the races are oriented when you disassemble the joint.

--DD