Used 2025 Ford F-550 Super Duty

2025 Ford Super Duty Lariat 6×6 – Fully Custom BuiltThis is a professionally engineered 2025 Ford Super Duty Lariat 6×6, built to deliver extreme capability while maintaining factory-level comfort, reliability, and road legality. Starting with a brand-new Ford Super Duty Lariat cab-and-chassis, this truck has been transformed into a true six-wheel-drive powerhouse designed for serious towing, off-road performance, and everyday drivability.

Built on a Proven Ford PlatformThe truck begins as a 2025 Ford Super Duty Lariat Cab & Chassis with an 84” cab-to-axle configuration, factory 4.10 or 4.30 gearing, and a rear-mounted fuel tank. Interior and exterior colors are customer-selected, preserving the premium Lariat look and feel inside and out.

Heavy-Duty 6×6 Axles & DrivelineAt the heart of the build is a fully custom 14-bolt axle system with Detroit lockers for maximum traction. Oversized 41-spline axle shafts, heavy-wall DOM tubing, upgraded U-joints, and reinforced trusses ensure unmatched strength and durability.
A dedicated SCS transfer case splits power evenly across all three axles, while heavy-duty Spicer driveshafts and Rockwell-style flanges deliver smooth, reliable power under any load.

Advanced Suspension & SteeringThe suspension system is engineered for both comfort and control, using 14-inch travel carbon coilovers at all three axles with remote reservoirs and dual-rate springs. Long-arm 4-link geometry keeps the truck stable at speed and compliant off-road.
Up front, a high-steer system with upgraded knuckles, reinforced steering components, and dual stabilizers provides confident handling despite the truck’s size.

Hydraulic Rear SteeringTo keep this 6×6 maneuverable, the truck features a hydraulic rear-steer system powered by an aviation-grade pump and electronically controlled valve system. Rear steering dramatically reduces turning radius at low speeds while remaining stable and predictable on the highway.

Factory Comfort, Modern TechDespite its extreme capability, this truck retains full OEM electronics, gauges, safety systems, and emissions compliance. There are no warning lights, no deleted features, and no compromises in everyday usability. Power retractable AMP Research steps make entry easy, and LED rock lights are integrated into factory upfitter switches for clean, intuitive control.

Custom Body, Frame & FinishVisually, the truck stands apart with a custom dual-arch Super Duty bed, paint-matched bumpers, grille, mirrors, badges, and lighting. All fabricated components are powder-coated, accented with mirrored stainless-steel overlays for a premium, show-quality finish. The rear hitch and bumper system retain factory towing capability.

Wheels & TiresThe truck rides on 30×16 forged KG1 wheels with billet floating caps, wrapped in massive 42×16.50 Fury Mud Terrain tires, professionally mounted and balanced.

Built to Be DrivenThis 6×6 is fully street legal, emissions compliant, and engineered to drive like a factory Lariat—just with dramatically enhanced capability. Whether towing, off-roading, or making a statement, this truck delivers uncompromising performance with OEM-level refinement.