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Last month we reviewed the results of chassis dyno testing done by Sean Boyle’s students in the automatic transmission class at Southern Illinois University. Four modified […]

When torque converters first transitioned from the early bolt-together units to the welded/sealed units of the present day, transmission shops were faced with a new challenge. […]

For several years, technicians have been trying to solve the mysterious cold stall issue in vehicles equipped with Mercedes 722.6 transmissions. When the problem was first […]

In 1955 the automotive industry finally standardized the shift quadrant on all vehicles. From that time forward, all shifters would read from left to right (or […]

Part 1 in a four-part series on torque converter modifications When the original equipment manufacturers create their driveline packages, they have many issues to consider, such […]

To help understand some of the flow issues that plague the 4R100 converter, it’s a good idea to look first at its ancestor, the E4OD. The […]

The new General Motors (G.M.) Captive Clutch has four (4) spring steel straps which restrict the rotational movement of the piston. One end of each strap […]

When you are ordering torque converter parts from your supplier, it is important to be able to communicate your wants and needs to your salesperson. Frustrations […]

Impeller Vanes The movement of a vehicle relies on the torque converter’s ability to transfer the torque of the engine to the transmission (the beginning of […]