Re-Manufactured Distributor with Cast Iron Gear for 1979-1985 5.0L Mustangs.This distributor is made with the highest quality re-manufactured parts in the aftermarket. Through reverse engineering, engineers pinpoint original equipment design weaknesses through examining failed cores. 100% dis-assembly and component renewal to ensure you receive reliable products. 100% replacement of critical rubber wear components so you receive longer life. 100% computerized testing for quality and reliability. 100% appearance inspected to ensure your satisfaction.