aldot, just to clear this up for the benefit of people who read it later, am I right in guessing that one of the two nuts that screw onto the shaft to keep the opposite sides of the clutch pack and thrust bearing from walking sideways down the shaft, was missing, and this is why we couldn't find the nut in your pictures? In other words, your clutch set-up should be just about the same as Deadly Dave's? If I'm wrong, there seems to be a thread on the axle on one side of the clutch pack that doesn't do anything, and there is nothing to keep the clutch pack from moving sideways when you engage the clutch in that direction. Please clear this up for us. If I'm right, the pictures of your clutch job supplement the pictures of Dave's in the other thread, and give us a more complete story than either one by itself. And you need to get a nut and put it on, when you put that shaft back in the mower, or you'll have poor clutch performance in one direction (I don't know if it is forward or reverse that pushes the clutch in the direction toward the missing nut).
Are you going to put graphite on the square, to keep the clutch members from binding to the shaft? Do not put oil or grease there, but I think graphite would be OK - it won't form an abrasive slurry with dirt, the way liquid-based lubricants do.
