Rebuilding a 4L60E With More Power and Durability
It was the year 1990 when the highly popular 700-R4 was redesigned and sold as the 4L60, with the ‘4’ in the name indicating the four-speed, ‘L’ meant the longitudinal setup (north or south), and ‘60’ meaning light-to-medium-duty task and 6k pounds of total vehicle weight. Even though the 700-R4 came with a fresh designation, the good ol’ drive-ability and shift balancing issues still existed. The expert engineers at GM came up with an idea to develop a computer-controlled 4L60 (generally referred to as 4L60E) based on the 700-R4. The 4L60E arrived in the year 1993 with features like a precision shift that were never found in the traditional 700-R4/4L60 series. 4L60E consisted of a computer-controlled system that was basically a PCM (Powertrain Control Module). This system has the capacity to achieve control with the help of a VSS (Vehicle Speed Sensor) and other necessary sensors throughout the system, which also takes the engine into account. These sensors offer adequate feedback to