When it comes to lifting a Ford F-450, you've got to make sure that the conversion kit can do the job right. Kelderman, known for quality engineered air ride suspension kits for light and medium duty ...

A sea-change in hot-rod suspensions is sweeping across the scene: replacing conventional metal suspension springs with air springs, often controlled by sophisticated air compressors and self-leveling ...

Kelderman Manufacturing has designed a front four-link air-ride conversion kit for the Ford F-650 and F-750. The company says the easy-to-install system greatly improves ride comfort, decreases shock ...