The FCS 342537 Rear Shock Absorber and Strut Assembly is engineered to provide superior ride control and handling for commercial vehicles. Designed for the rear driver or passenger side, this shock absorber features a gas-charged MacPherson strut with a hard-chrome piston rod and premium OE Eneos oil, ensuring a great seal, long life, and consistent dampening over a wide range of temperatures. The precisely calibrated valving is individualized for each application to best simulate OE ride and feel. The coil spring is electrostatically coated to prevent corrosion and undergoes thorough checks for original compression levels. The boot kit and bumper are molded from urethane rubber for long dependable life, absorbing harsh, damaging road impact and noise for quieter driving. The reinforced brackets are designed to handle even the worst road conditions. The nitrogen gas reduces aeration and strut fade to provide better tire-to-road contact for improved ride and handling. This shock absorber is engineered to meet and exceed OE quality, providing improved performance and reduced wear and tear on tires and other components.