Chevrolet first incorporated Allison transmissions into its medium-duty trucks in 1956.
The Introduction of Allison Transmissions in Chevrolet Trucks
Starting in 1956, Chevrolet began to integrate Allison transmissions into its medium-duty truck lineup. This collaboration involved the Allison Division of General Motors finalizing a new six-speed automatic transmission specifically designed for these Chevrolet vehicles.
This significant development introduced a new on-highway automatic transmission featuring a four-element torque converter, six forward speeds, and one reverse. A notable inclusion was the Allison hydraulic retarder, which aids in vehicle braking and reduces wear on traditional friction brakes, enhancing durability and safety for commercial applications.
Key Details of the 1956 Integration:
- Year: 1956
- Vehicle Type: Chevrolet medium-duty trucks
- Transmission Type: On-highway automatic
- Specifications:
- Six forward speeds
- One reverse speed
- Four-element torque converter
- Integrated Allison hydraulic retarder
The introduction of these advanced automatic transmissions marked a pivotal moment, providing Chevrolet trucks with enhanced performance, improved drivability, and increased reliability in demanding commercial environments.