The Jung Jungenthal upgrade is a package that upgrades the armor, fire control, transmission, and fuel storage. Appliqué armor has been added to the glacis, turret front, and turret sides, some of it spaced or with a ceramic sandwich added to improve survivability against HE-type warheads. Side skirts are also added to the hull to further increase protection. The hull itself is also of a somewhat different shape, though this is primarily to accommodate new fuel tanks rather than an armor change. The fuel tanks fitted to the upgrade are made of higher-capacity Superflexit bag-type tanks under armor, which are also self-sealing and have a fire suppression system of their own. Due to the higher capacity of the new fuel tanks, the drum-type long-range fuel tanks would not normally be mounted, though the attachment points and hookups are retained and therefore the drum tanks could still be mounted. In addition, the rest of the vehicle is also equipped with an automatic fire suppression with a manual backup.
The fire control suite was not heavily modified to control costs, but includes an electric stabilization system, a basic laser rangefinder and simpler ballistic computer. The turret ring has also been modified to allow faster traversing. Each side of the turret has a bank of four smoke grenade launchers, and the upgrade can also inject diesel fuel into its exhaust to form a thick smoke screen. The main gun can be retained, or may be replaced by a 105mm M-68 rifled gun. (The turret shape with a 105mm gun is slightly different at the front.) The coaxial and commander’s weapons can be retained or replaced with an MG-3 and M-2HB respectively if desired. (The Egyptians did not intend to replace those machineguns.)
The suspension is largely the same, but hydraulic bump stops have been added and the roadwheels and tracks are replaced with the stronger ones of the T-62. The original engine is also retained, but the transmission is replaced by a fully automatic transmission.
