This is for SR20DET's with CD009 Trans swap only.
Most 240sx have the center driveshaft carrier bearing shot and will move under load.
This will cause vibration and knocking noise.
3" Aluminum 1-piece driveshaft eliminates the need for a bearing completely, and also reduces overall mass on the drivetrain resulting in more power to the wheels.
*This driveshaft is made in USA and high-speed balanced. Comes with 1310 U-joints for a direct drop-in replacement. Zero modifications needed.