Duramax-Powered 2000 AM General Hummer Open Top Heads to Auction With Extensive Off-Road Upgrades

A heavily modified 2000 AM General Hummer Open Top is heading to auction. It preserves Humvee roots with portal axles and a tire-inflation system. The 6.5L diesel was swapped for a 6.6L LBZ Duramax V8 with an Allison six-speed automatic. Suspension is adjustable and rides on 20-inch Black Rhino wheels with Wilwood brakes. Exterior updates include LED lighting, a brush guard, recovery winch and Predator bumper with bed rack. Inside, H1 Alpha seating, wood trim and a Kenwood head unit replace stock. The mileage shows about 74,100 miles, with a history note of potential 2021 discrepancy. 2023 maintenance included alternator, belts, fuel filter housing, heater delete and A/C recharge.