OMNIFLO 10 need help

So I got to work today. They asked me to finish removing all the parts for the CBS (center board support). While doing this I removed A Tor Tender tolomatic 1/2 inch gear box from the shaft that widens the rails. It is used to link the front and rear end rails. Now i can't seem to get it back on. Any help out there at this time of night?

reply »