i didnt pull the crank(its costly IMO) i bought a 58t to 24t converter Lingenfelter Performance Engineering: Lingenfelter TRG-001 58x To 24x Crank Sensor Trigger or Reluctor Wheel Conversion Module its about 275.00 after shipping. if you dont get the wiring harness with the engine youll have a very hard time finding one(well i am anyways) so youll have to change the valley cover to a 99-02 valley cover with knock sensors and change the DOD lifters IF your motor has them. if not then you saved about 300.00