The sprinter will need to adopt a Commando box and for which you will find mounting details in MPH. The earlier AMC pre Commando box has different mounting lugs and needs the F106 lower lugs dropping by 3/4" to pick up the top lug of the gearbox. I have a long shaft in the tricycle special gearbox and where the clutch is pulled up against a stop in the centre of it's body. Not as on the Commando against a circlip on the shaft. The material behind the AMC clutch on the inner chain case will need facing off as the clutch body scrapes it. The gearbox sprocket is pulled up against a hardened sleeve which forms part of the oil seal. The sprocket can be spaced out by using a large thick washer if so desired. If you run a 22t GBS you will need to dress the left hand lug on the F106. A good chap to find is Dave Coates of Upper Buckleberry near Thatcham, Berks. P.M. or ring me for his number. Cheers, ET43