The Power block is a similar clutch and I just made a tool out of a piece of 1" square Billet aluminum that slipped over the edge of both halfs. You would run a bolt thru the center with large washers then tighten the nut untill the clutch was compressed enough to install the tool. Then remove the bolt and spring tension holds the tool in place. Slip it on the shaft and install the bolt. The clutch halfs will then compress and the tool will drop off.