Part-throttle driveability can often be improved by changing to a vacuum modulator designed for higher shift points (General Motors and FoMoCo products only). Modulators displaying a red band are used ...

Performing an AOD swap in a classic Mustang is easy today thanks to the automotive aftermarket. These companies have done the homework already. All you have to do is tell them what you have and what ...

Ever wonder how your transmission knows to shift gears? Why is it that when you stop, the engine doesn't die? We're here to show you how cars work. We recently looked at manual transmissions. This ...

If it's mechanical, you can bet the OEs have it digitally controlled. This obsession with control started with electronic fuel injection in the late 1980s and eventually expanded into suspension and ...