The Turbo-Hydramatic 400, often abbreviated to TH400, is a heavy-duty three-speed automatic transmission developed by General Motors. Known for its durability and substantial torque capacity, it was frequently paired with larger engines and used in a variety of vehicles, including trucks and high-performance cars. When combined with a four-wheel-drive system, this drivetrain configuration provides significant off-road capability and robust performance under demanding conditions, enabling vehicles to navigate challenging terrains.
The combination of this specific automatic transmission and a four-wheel-drive system offered a reliable and powerful solution for vehicles requiring both on- and off-road performance. Its strength made it suitable for towing and hauling heavy loads, contributing to its popularity in trucks and SUVs. Developed during an era focused on performance and durability, the transmission earned a reputation for its ability to withstand considerable stress. This legacy continues to influence vehicle modifications and restorations today.
