Dodson Motorsport's uprated A Clutch seal and piston is designed to eliminate the seal failure and not as just a replacement of the same part which is likely to fail again. This piston controls even gears (2, 4, and 6.) Their piston is made from high tensile steel with a replaceable seal that is made of the highest quality and temperature resistant material. Has higher clutch clamp due to less piston flex. More even clutch clamp due to redesigned clamp faces.