The GT-MU-1D is a light multi-purpose armored vehicle. It is a further development of the GT-MU with new diesel engine instead of the petrol, and some other improvements. It was designed to carry troops, weapons, ammunition and other military cargo over difficult terrain. Vehicle has a payload capacity of 1 000 kg. It is also used to tow artillery pieces, mortars and special trailers with a maximum weight of 2 000 kg. However the trailer can be towed at a cost of reduced vehicle payload. The GT-MU-1D can function as a front line load carrier for anything from ammunition to fuel. This multi-purpose armored vehicle is also used for medical evacuation from the battlefield. Production of the original GT-MU commenced in the early 1970s. The GT-MU-1D appeared later. It has been exported to the former East Germany, and possibly other Soviet allies. Also this vehicle can be found in service with some former Soviet republics.
The GT-MU-1D has great cross-country mobility. This vehicle can go over swamps, sand and snow. It can be also used in mountainous terrain. Maximum altitude where it can operate is 4 650 m above the sea level.
Engine is located behind the driving compartment. It separates driver and vehicle commander from the troops.
The GT-MU-1D has a welded steel armor hull. However its armor is very thin and protection is rather limited. It provides protection only against light infantry small arms. Also the vehicle is vulnerable to anti-tank mines as the hull floor is not armored.
This light armored vehicle has a crew of two, including commander and driver. It can carry 8 to 10 troops in the rear troop/cargo area. Passengers enter and leave the vehicle via rear doors. Also there are roof hatches for observation, firing and emergency exit.
The GT-MU is unarmed. However there are some firing ports provided for the occupants to fire their individual weapons.
The GT-MU-1D is powered by a GAZ-5441.10 turbocharged diesel engine, developing 173 hp. The original GT-MU was powered by a ZMZ-71 petrol engine, developing 115 hp. This vehicle has a 4-speed manual gearbox. This vehicle can operate at temperature range from -50°C to +40°C.
This light armored vehicle has a watertight body and is fully amphibious. On water it is propelled by its tracks. Amphibious speed on water is 5-6 km/h.
The GT-MU-1D has a 400 kg capacity winch with 100 m of cable. It is used to winch the wounded soldier on a canvas mat. Alternatively it can be used for self-recovery.
This armored vehicle is airportable. Also it can be airdropped using special parachute platforms.
The GT-MU-1D is a versatile vehicle, that could be adapted to suit many armored support vehicle roles. Some variants of this light armored vehicle were developed.