Powerflex USA - Nissan 300ZX / Skyline Rear Trailing Arm BushingsPFR46 203 fits 200SX S13 & Skyline R32 models Bushing length is 45mm with an OD of 33mm. Stock rubber control arm bushings give a disconnected and mushy feel to the front suspension, especially when worn, as the bushing deflects more than it should. You get sloppy steering, vibrations, and poor handling which makes the car feel unstable. These urethane bushings are stiffer than stock rubber and will not deflect as much. This helps keep the alignment