Here are some images of AR.V Club's 1/35 scale M35A1 Quad-.50 Gun Truck.
From Wikipedia "
The M35 family of trucks is a long-lived vehicle initially deployed by the United States Army,
and subsequently utilized by many nations around the world. A truck in
the 2½ ton weight class, it was one of many vehicles in U.S. military
service to have been referred to as the "deuce and a half." While the
basic M35 cargo truck is rated to carry 5,000 pounds (2,300 kg) off road
or 10,000 pounds (4,500 kg) on roads, they have been known to haul
twice as much as rated. Trucks in this weight class are considered
medium duty by the military and Department of Transportation. The M35
series formed the basis for a wide range of specialized vehicles.
The versatility of the pattern was perhaps shown best in its usage as an armored "gun truck" for patrol duties and convoy escort.
The simplest examples were produced by simply placing an existing
light gun mount directly onto the cargo bed of the truck, and securing
it in place. No armouring or special support equipment was installed.
One such conversion was performed in Congo-Leopoldville in 1965, using
an Oerlikon GAI 20 mm anti-aircraft gun. Another conversion in the Congo
entailed mounting pods with 2.75" aircraft rockets on a pedestal on the
cargo bed, but this proved unsuccessful.
The first more sophisticated conversions of the pattern were
performed by the U.S. military in Vietnam. U.S. Army Artillery
Battalions (Automatic Weapons, Self-Propelled) were often assigned
Artillery Batteries (.50-caliber), units equipped with M35 trucks and
M55 Quadmount systems mounting four M2 Browning machine guns. Units were also authorized a single M60 machine gun and M79 grenade launcher. While the M35 was designed to act as the prime mover for the M55 Quadmount
system, which included a towed trailer, the M45 mount was often removed
or the wheels removed from the trailer, and the system mounted on the
bed of the truck. The M55 system was also mounted on the M54 truck.
More simplified armoring projects were conducted as well, adding
armored walls of various thicknesses to standard cargo variants. A
smaller bed-mounted multi-angle "box" was also tried. U.S. Army gun trucks used a wide variety of weapons including the M2 Browning machine gun, M60 machine gun, and even the M134 Minigun.
At the end of the Vietnam War most of these vehicles were returned to
their standard configuration, except for a single original example
shipped to the U.S. Army Transportation Museum at Fort Eustis, Virginia
Numerous Vietnam veterans have expended countless hours to build full
size replicas of their original Gun Trucks, using M35, M54, and even
Army Dump Trucks as platforms, much the same as these veterans did in
Vietnam. A functional display replica of the "Psychotic Reaction" Gun
Truck Based on an M35A2 chassis is currently in use and being displayed
at many military vehicle displays and Vietnam veteran reunions / events.
The concept lived on well after the Vietnam War. El Salvador
converted a number of M35 type vehicles into armored trucks in the
1980s, after successful conversions of Magirus Deutz trucks. These vehicles were nicknamed "Mazingers" in reference to the Japanese cartoon Mazinger Z.
The Philippine Marine Corps also began converting M35 type trucks to
an armored configuration by 2004. The first vehicle, dubbed "Talisman,"
utilized armor fabricated from derelict LVTP5
amphibious personnel carriers. Later gun trucks were built using more
standard components and bear some resemblance to U.S. military vehicles
of the Vietnam era.
The Philippine Marine Corps had also begun the creation of an
anti-aircraft element by 2006, utilizing M35 based vehicles. Two types
of vehicles have been seen so far. One utilizes the Mk 56 Mod 0 mount
from the Patrol Boat, River, with two M2 Browning machine guns, while the other features another former naval mount with a single Oerlikon 20 mm cannon.
Colombia maintains a fleet of REO M35 "Meteoro" armored trucks. These
locally fabricated armored vehicles are used to guard tourist bus
caravans as well as mobile checkpoints. Early vehicles were not
fabricated to any particular standard and typically hosted three weapon
stations that could be fitted with a 7.62 mm (.308-cal) or .50-caliber
(12.7 mm) machine gun. The weapon stations may or may not have had a gun
shield on any particular vehicle. More recent examples follow a pattern
with the cab and fuel tanks armored and the drop side cargo bed
converted to an armored box, atop which is a "gun tower," a set of four
heavily armored weapon stations, one facing each direction. .50-caliber
machine guns are mounted front and back, with 7.62 mm machine guns
mounted to the sides. Losses in the Meteoro fleet instigated the
purchase of the BTR-80 Caribe.
In addition to the basic cargo version, tank water and fuel. The
CEMABLIN-(Centro de Mantenimiento de Blindados del Ejército Venezolano)
locally manufactured a version of anti-air defense operations and
support, thanks to all the necessary parts were stored and in perfect
condition. 6 units were produced in early 1998. The "Fénix" system,
was assigned to the 1103º BDAA 40mm. based at Fort Yaurepara in Zulia
state. But they had problems with the tower's weight and shoot on the
move. They were retired in 1998 and substituted by the AMX-13 M55/M4E1
"Ráfaga" 40mm also produced locally stored material advantage and in
good condition. The "Fénix" is a M4E1 tower, recovered from a car M42 Duster
and 2 M50 machine guns .30 caliber for Protective Part (a cylindrical
tower made of welded armor plate with open top with twin mounting Bofors 40 mm gun), mounted on a tactical platform Truck 6x6 2 1/ 2 tons, Reo M-35.