NO.. there is no grease between the bushing and the sleeve. You can revove it rather easily tho. Using a vise (open) or 2 pieces of wood, use a deep socket (slightly slimmer than the sleeve) and a hammer to push out the sleeve. Add grease and use hammer to tap the sleeve back in. I did it with all of them in about 10 minutes.
Don't be afraid to take it apart. It's just the sleeve, bushings and the shell. Nothing to it.