SENSEN 4010-RS Rear Shock Absorbers for 98-09 Ford Ranger RWD (Coil Sp Precision designed for a direct fit and restore factory ride height. Nitrogen Gas charged, Twin-tube design. Precision robotic welding for consistent, accurate quality and dependability. Quality Control system certified by ISO9001:2000 and ISO/TS 16949:2702 SENSEN limited lifetime warranty, Purchase with confidence.