Unusual Jeep Transmission Features Dual Second Gears Explained

The article explains why the Jeep 545RFE automatic transmission, despite being labeled as a five-speed, actually has six gears due to its internal planetary gearset design, including two second gears used for different shifting scenarios. It details the transmission's history, design features, and the benefits of its complex clutch system and adaptive learning control, highlighting its robustness and innovative engineering.