Breaking Down the FF 4x4 Chassis at GNF100

Rob walks through the FF 4x4 Chassis front to back at the 2026 GNF100 show in Pigeon Forge, Tennessee. This one's built for a 1968 F100 short bed with a Godzilla swap and 10R80, and it's a solid look at what goes into a purpose-built 4x4 classic truck chassis.

The FF 4x4 Chassis is FFG's in-house built chassis designed specifically for classic Ford trucks. Every mount, hard line, and suspension component is pre-staged for your year and cab configuration, so dropping a body on is straightforward. Whether you're building a driver or something that sees real off-road use, it's engineered to ride like a new truck.

Starting up front you've got Wilwood brakes with 13-inch rotors, a Redhead steering box set up for hydroboost, and a sway bar. Suspension is a parallel four-link up front, triangulated four-link out back, with Locked Off-Road 12-inch coilovers dialed in for around 7 inches of lift. Icon is available as an upgrade if you want active suspension control. Out back, 35-spline chromoly axles with a Currie setup and 4.11 gear ratio. Fuel tank is a 30-gallon aluminum unit from Boyd Welding. Available in 5-lug or 8-lug depending on your application. Current lead time on a 4x4 setup is about 6 months.

More on the FF 4x4 Chassis at fatfender.com/pages/ffgchassis. Build and chassis inquiries at [email protected].

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