With upgraded suspension components, you can unlock the full potential of your vehicles performance. About Belltech: Since 1983 small company in Fresno, California had an idea to build the 'best performing' lowering suspensions for the Chevrolet pickup. Fresno had been a haven for lowered vehicles and trucks were in abundance. Trucks were being lowered but their suspensions were terrible and not very roadworthy. The stance looked good but the ride was terrible.