Whether you're a seasoned Mustang modifier or are just now enjoying the ownership of your first classic Mustang, you are probably familiar with one of the golden rules of tinkering: For every positive ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

The AOD might have kicked off the overdrive era in Ford's passenger car history, but it was hardly considered a performance transmission-unlike today's highly praised and tough 5R55S five-speed auto.

For the longest time, if you ran a Ford small-block or Windsor engine and wanted to run an automatic, your transmission of choice would likely be a C4. For heavier duty applications you'd likely opt ...