Fits most Freightliner FL60, FL70, FL80 and FL106 Series conventionals manufactured in 1991 and after. The CABMATE MODEL FRT106HD-A fits most 1991 and newer Freightliner FL60, FL70, FL80, and FL106* Series Trucks. It replaces the original rear cab mount bracket, Freightliner Part Nos. 680-317-00-40 or 680-317-04-40.-An air compressor system is required -Trucks with horizontal muffler and vertical stack may require some exhaust modifications. *FL-106 Series Trucks will require a Cab Spacer, Link Mfg. Part No. (2265-9000). Specify when ordering.