Many thanks to Pete Roper, down-under Guzzi guru from the Wildgoose board.   My dealer assured me the procedure to change the gearbox is to sling the bike to the ceiling and lower the driveline out of it. Pete had put me on to the technique of tipping the frame forward ( "crabbing") for access to the box and the clutch.   I chocked the front wheel in a 'sport chock' and strapped the frame to the ceiling. After releasing the rear frame elements and loosening the front frame bolts , the engi