Sources Lyles, James. The Hard Ride; Vietnam Gun Trucks (Volume II). Quezon City, Philippines: Planet Art, 2003 Montes, Julio. Mexican and Central American Armor. Darlington, Maryland: Darlington Publications, 2001 Rottman, Gordon and Donald Spaulding. Vietnam Armor in Action. Hong Kong, China: Concord Publications, 2002 Spencer, David. Armored Fighting Vehicles of El Salvador. Darlington, Maryland: Darlington Publications, 1995 External links M35 series at Olive-Drab.com M35 series at Military-Today.com M35 series Technical Manuals at Jatonka M35 Series Technical Manuals at NSN Depot Vietnam-era gun truck replicas honor Vietnam Veterans "New Army Truck Runs Under Water", September 1950, Popular Science first public article on M35 for general public – i.e. many rare photos "The Submarine Truck's Secrets", June 1951, Popular Science scroll page past diver to see more rare photos of M35 trucks (i.e., then the M135 "Eager Beaver") – Yes, you are at the right page, scroll down past U.S. Army diver Pickup trucks Military trucks of the United States Military vehicles introduced in the 1950s Six-wheeled vehicles