This is the complete Aluminum Driveshaft for the Skyline platform,This is a 3.5" 6061-T6 aluminum shaft that uses a CV in the rear but has had the internals changed to a higher grade chromoly and is a direct bolt on. This single shaft eliminate the factory 2 piece shaft. By removing the factory 2 piece shaft the car will lose the excessive motion caused by the hanger bearing moving up and down when you step on the gas. This will make the car react faster to throttle input and make the car feel more responsive. Rated to 1200HP with a 1-year warranty.