this is our single shaft conversion for the 240sx platform, this is a complete 6060-T6 aluminum shaft that is about 1/2 the weight of the factory 2 piece. the shaft has larger,replaceable and greaseable u-joints and can handle about 650WHP. so if your looking for that extra snap to DRIFTING or just want a stronger smoother shaft for your car here it is. Light weight (11lbs) 6061 aluminum driveshaft. Replace the heavy factory 2pc driveshaft. Works for both KA and SR20DET motors. * To install on KA motors, one needs to bang out the metal shield collars around the tranny ends to make room for the driveshaft joint.