5-Speed Manual Transmission

The ZF S5-42 is a robust 5-speed manual transmission commonly found in Ford F-Series trucks, P-Series vans, and Full-Size Broncos from 1987 to 1994. This transmission is engineered with an aluminum case and an integrated bell housing, offering durability for demanding applications. This transmission is offered in two main configurations: a wide ratio (5.72/0.76) which is primarily for gasoline engines, and a close ratio (4.14/0.77) which is generally for diesel engines. The S5-42 has a torque rating of 420 ft-lbs. Common issues reported include pilot bearing failure, particularly in F-250 and F-350 pickups, and problems with shifting the 5th/reverse gear due to high mileage. Repair kits and replacement parts, including synchronizer cones, shift forks, sliders, and bearing kits, are available to address these issues. Midwest Transmission offers various parts and kits to service the ZF S5-42, including complete bearing rebuild kits, gasket and seal kits, and specialized repair kits for common shifting problems. This process can be beneficial for heavy-duty applications or for owners looking to extend the lifespan of their transmission components.