Crown Wheel and Pinion Crown Wheel And Pinion Tolerance Control: Outer Diameter: ±0.005 mm. Length Dimension: ±0.05 mms.Material: 20CrMnTiH3 Chinese standard GB/T3077—1999; 8620H USA ASTM A304; 22CrMnTiH Chinese standard GB/T3077—1999.Vehicle Application: TOYOTA, MITSUBISHI, NISSAN, ISUZU, HINO, DAIHATSU, FORD, GMC, JEEP, CHEVROLET, MERCEDES BENZ, VOLKSWAGEN.