I'm a new ket owner and my dealer is also new. The only manual we have is the owners and that is rather vague. I bought the Custom that comes with the Nexus 8. I also purchased the differential. The differential came uninstalled with the Shimano body attached for the 9 sp cluster. Does anyone know how to detach the Shimano body? Also, how do you pull the left wheel axle out to attach the drive shaft.