Established in 1935, Superior Trailer deals with truck and trailer sales. Based in Fontana, Calif., the company provides trucks models, such as dumps, bottom dumps, custom built trailers, pupsets, flatbed dumps and rolloffs. The company manufactures transfer chassis, pup chassis, low beds and specialty trailers. The superior parts department includes air system knowledge, air cylinders, drive gear for transfers and steel floors and sides in stock. It has also introduced a new product, called SwapLoader Hook-lift. Superior Trailer has won the Swedish Steel Prize award in 1999.