DESCRIPTION GENERAL The A340E is a 4-speed, Electronic Controlled Transmission (hereafter called ECT) developed for use with high-performance engines such as the 7M-GE and 7M-GTE. A lock-up mechanism is built into the torque converter. [Image: Cross-sectional diagram of transmission] 01328 The A340E transmission is mainly composed of the torque converter, the overdrive (hereafter called O/D) planetary gear unit, 3-speed planetary gear unit, the hydraulic control system and the electronic control system. [Image: Schematic diagram showing transmission components] Torque Converter Oil Pump O/D Planetary Gear Set Front Planetary Gear Set C₀ B₀ F₀ B₁ C₂ C₁ B₂ F₁ B₃ F₂ Rear Planetary Gear Set O/D Input Shaft Input Shaft Output Shaft O/D Planetary Gear Unit 3-Speed Planetary Gear Unit Hydraulic Control Unit AT2/b3