10.FINAL REDUCTION/ TRANSMISSION SYSTEM MXU 300/250 Inspect shift shaft gear. Shift Shaft Damage Replace. Inspect shift shaft. Damage/bends/wear Replace. Shift Shaft Gear Remove the main axle. Main Axle Collar Clutch Dog MAIN AXLE DISASSEMBLY Remove the washers, collar, primary driven gear, bush and clutch dog. Washer Primary Driven Gear 10-10