Now offered on Bring a Trailer, this 2020 Jeep Gladiator Sport S has been extensively re-engineered into a highly distinctive six-wheel pickup that combines aggressive off-road hardware with forced-induction performance. Rather than simply adding cosmetic upgrades, the build incorporates substantial changes to the chassis, suspension, braking system, cargo area, and powertrain, creating a Gladiator with a configuration rarely seen outside of specialty custom fabrication.
The most obvious modification is the addition of an unpowered trailing third axle behind the factory rear axle. This gives the truck six wheels while retaining power delivery to four wheels. A suspension lift accommodates the enlarged running gear, while six-wheel disc brakes provide braking hardware across the extended chassis. The Gladiator also features an extended bed, increasing its utility while complementing the custom rear structure.
Exterior modifications are extensive. The truck wears a tan textured finish over its bodywork and is equipped with a Fab Fours Grumper front bumper and grille assembly. A 12,000-pound-capacity winch is integrated into the front end, providing additional recovery capability for off-road use. Power-deployable Amp Research side steps improve access to the lifted cabin, while LED auxiliary lighting adds illumination for nighttime trail driving. At the rear, a DV8 bed rack and bumper are joined by inner fender liners, giving the extended chassis a purpose-built appearance.
The truck rides on black 20-inch KMC XD wheels wrapped in 37×12.5-inch Nitto Trail Grappler M/T tires. These tires were installed in July 2026 and provide a substantial increase in ground clearance, traction, and visual presence compared with the factory configuration. The combination of the lift, oversized tires, and additional axle gives the Gladiator a considerably more imposing stance.
Inside, brown upholstery with diamond-pattern inserts provides a contrasting finish against the exterior’s tan treatment. Equipment includes air conditioning, a rear-view camera, and UConnect 3 infotainment. The instrument cluster combines a central configurable display with a 7,000-rpm tachometer and 120-mph speedometer. Electronic driver aids include Hill Start Assist, Electronic Roll Mitigation, Electronic Stability Control, and Trailer Sway Control.
Under the hood, the factory 3.6-liter Pentastar V6 has been upgraded with a Hamburger’s supercharger, substantially changing the engine’s performance potential. Power is routed through an eight-speed automatic transmission and Command-Trac dual-range transfer case to four of the truck’s six wheels. The resulting package blends the Gladiator’s factory four-wheel-drive architecture with a highly unusual six-wheel chassis, forced induction, oversized tires, and extensive custom hardware.
As a result, this Gladiator Sport S stands apart as an aggressively modified interpretation of Jeep’s midsize pickup, combining functional off-road equipment, increased cargo capability, and supercharged performance in a configuration designed to attract attention both on the trail and at auction.
2020 Jeep Gladiator Sport S Three-Axle Conversion For Sale – Image Gallery
Source: Bring a Trailer