A comprehensive collection of components designed to overhaul a General Motors Turbo-Hydramatic 400 automatic gearbox. This assembly typically includes friction clutches, steel plates, sealing rings, gaskets, filters, and sometimes, small hard parts such as bushings and thrust washers. Its purpose is to restore optimal function to a worn or malfunctioning unit.
This assembly offers a cost-effective method of revitalizing an existing transmission, preventing the need for a complete replacement. It allows technicians to address common wear points and potential failure areas, thus extending the operational life of the gearbox. Originally introduced in the mid-1960s, the TH400 saw extensive use across various GM vehicles, making this an important part for maintaining many classic cars and trucks.
