I must admit that I dont know how to tell the difference between greased and not. What type of grease?

 

Look/feel for a nipple on the u-joints.
Any high quality automotive grease that goes into a grease gun.

 

I am a man who can find nipples and i didn't just feel any! That really pisses me off b/c I had my front drive shaft replaced like 30k ago when i was stranded in texas. I told the guys to make sure they got me greased shaft. But i was a bit less wise then.