Im in the process of repairing the pins and bushings on the 40 series Bob-tach on my 642b. With it off the machine, I can still see part of what was once the round bushing in the Bob-tach. My question is, is that bushing part of the welded "cap" that the grease zerk threads into, or is it a seperate entity, which was pressed in from the opposite end of the grease fitting? My brother in law is a machinist, and can make me new bushings, but I cannot tell if I will need to cut the "cap" that holds the zerk in off, or if I can crack what is left of the bushing and pull it out the other end? Most of the threads I searched for on this topic are not real clear on this part of it, and the Bobcat manual is not real clear on it either.