You will need an E 10torex socket to use on the belt adjuster pully to remove the belt off the pulley system. You also will need an impact wrench (either electric or air) to remove the bolt off the crankcase pully. Some have tried to do this manually with great difficulty. I tried and gave up and purchased an impact wrench. Get one with at least 600 ftlbs of torque. My first impact wrench was rated at 250 ftblbs torque and could not loosen the bolt. The 650 ftlb torque wrench I then purchased was just barley able to lossen that bolt. Any way; that was my experience.Other than that the job was not difficult.

Yeah I meant a torque wrench.