Freightliner Custom Chassis Corporation (FCCC) is a Daimler Truck subsidiary dedicated to engineering chassis for the motorhome, walk-in van, and specialty vehicle markets. Founded in 1995 and headquartered in Gaffney, South Carolina, FCCC produces the XCM, XCR, and MT-55 chassis lines — designed from the ground up to support upfitters and OEM body builders with consistent fit, finish, and engineering support. Known for precise manufacturing tolerances and industry-leading quality standards, FCCC chassis are the foundation of many of North America's leading motorhome and commercial walk-in van brands.