Used On: E-Z-GO. The E-Z-GO Electric Marathon. Input Shaft is used with the Intermediate Gear, Part# 23501G3, for Electric Marathon Vehicles during rear axle assemblies. This part can also be used with Part# 73500G01, Electric Rear Axle Assembly for TXT Vehicles with the Precision Drive System (PDS). This input shaft is also used in 12.44:1 gear ratio applications.