you need to install the c3 you have, torque it to 20 nm and check to see if the clutch touches the pulley anywere. if not your golden . if it does thats were the shims come in to play. you want the pulley as close as possible without touching anywere. some use 1 shim some none some 4. every pulley seems to be different. i dont know which gen pulley you have but the early models used shims the last gen needed none.