Specfications
JMACX's 300mm chassis extension on a Ford Super Duty is designed to improve load distribution, tray fitment, and overall practicality for touring and work applications. This upgrade is paired with JMACX’s coil-over-leaf conversion and Alpha Electric shocks, delivering a balance of strength, control, and ride quality. The result is a Super Duty that’s better suited to carrying weight, towing, and handling real-world conditions, without compromising drivability.
