I really am interested in the jackshaft idea. As I have a spare Grubee HD rear axle I am just wondering of this could be turned into a jackshaft?
As this is supposedly hd with twin roller bearings it should stand up to the torque?
This is a picture of another home made jackshaft that sort of leads me to think this can be done - this seems to use a large sprocket on one end and a small one the other - this could lead to some space issues?
Any thoughts on the viability would be good.