Inside the 1940s GMC DUKW Factory: How America Built the Ultimate Military Vehicle

⚠️ DISCLAIMER: This video is AI-generated for educational and documentary purposes. Visuals are based on historical manufacturing documentation, period photographs, and technical manuals. Step inside Yellow Truck & Coach Manufacturing in Pontiac, Michigan during WWII (1942-1945) building the DUKW—America's revolutionary amphibious truck that could drive 50 mph on roads and swim at 5.5 knots through ocean waves. This documentary shows the complete DUKW production process: Hull panel stamping and forming using yacht-building techniques, watertight seam welding with dye penetrant testing, marine waterproofing and sealing, GMC 270 inline-six engine installation, dual transfer case assembly for land and water propulsion, 25-inch bronze propeller and rudder installation, central tire inflation system allowing drivers to adjust pressure while moving, six-wheel drivetrain connection, Olive Drab military paint application, and the spectacular final test—driving straight into the water test pond. 21,147 DUKWs built. 40% of all D-Day supplies delivered by these swimming trucks. General Eisenhower called it "one of the most valuable pieces of equipment produced during the war." Industrial Vault: Manufacturing Excellence Across Eras 🔐 #DUKW #Duck #AmphibiousTruck #WWII #DDay #GMC #Pontiac #MilitaryVehicle #HowItsMade #IndustrialVault #AmericanManufacturing #WartimeProduction #AmphibiousVehicle