Is it possible to put a smaller sprocket on the clean grain auger/elevator drive on a '92 R52 to speed up removal of grain. We seem to be limited on capacity by this area. When we get into higher yielding corn the shoe will overflow into the fan area. No loss over the rotor or shoe unless it overloads. The clean grain auger is in good condition. Has anyone had any success switching sprockets? If so, what is the part #. Any suggestions would be appreciated.