GREAT APPLICATION: The tool fit for Dana 30, 44 and 60 front differentials. The seals fit for Jeep JK, XJ, YJ, TJ 1984-2018 (Except 1996) Dana 30/44 front axles. MATERIAL: Made of CNC Billet Aluminum/steel, excellent solid and durable with great rust and corrosion resistance for years of trouble-free use.