before you put it back together, pull the drums and bands out. remove the O-rings from the plungers and then push the plungers through the bores to make sure they slide freely. also check the bores for scratches, or groves (they can be cleaned up with a brake hone if need be). Stop by Lowes or a similar hardware store and pick up a pack of #30 O-rings from the plumbing section. When you put it back together, push the plungers all the way through the bore and install the new o-rings from OUTSIDE the case. lube the o-rings with some atf and slide the plungers back in a little. install the c channel tightening the adjuster bolts just enough that the plungers can't go in far enough to let the o-ring fall inside the case. then set your drums back in. (it can be a pita to get the sun gears, plate and thrust washers aligned properly... just take your time).
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.