Rancho – a popular brand of suspension, shocks,more worldwide – was born in the 1950s in Long Beach, California, as Rancho Supply,,quickly grew into a thriving off-road,performance suspension components manufacturer. In 1985, Rancho launched what would later become its best-selling shock absorber: the RS5000. In 1990, Rancho was purchased by Tenneco Inc.,quickly expanded to include the world's first five-way adjustable shock absorber, allowing off-road enthusiasts to adjust the level of compression/rebound damping to suit their riding style,,launched the first "intelligent" shock, the RSX shock absorber. Rancho continued to grow,add fully engineered, industry-leading shock absorbers – like RS9000XL, Loaded quickLIFT, Pro Series,more – plus suspension systems to one of the world's most recognizable,technologically leading brands. Rancho suspension systems, shock absorbers, accessories,other related products deliver rugged performance for work,play in any on - or off-road environment.