RE: Two bolts on main shaft.... special steel or not?
firefli,
You are welcome.
On the B400, I usually just pop the links by hand. Alot of the tools are too big to get where you need them on the B400 anyways, so I usually don't bother.
The ball link tools are handy on the bigger helis, where there is more room, and the links tend to be on alot tighter.
Good luck with it, keep us posted!
Glenn