The '63 and later aluminum Powerglide transmission is quickly becoming the most popular automatic for bracket racing, class drag racing (where legal), street machines, street rods and mileage ...

Automatic transmissions are now used in most street machines, street rods, off-road vehicles, and drag race cars. With the addition of recalibration kits and new forward and reversed valve bodies, ...

I think we all know what a differential looks like, but actually figuring out what all those little gears do can be a little tricky. We all know they turn at different speeds—but why? And when? And ...

Jack Hardgraves had had enough. A friend bought a Thunderbird “and proceeded to humiliate Jack in front of the crowd at the local dragstrip Sunday after Sunday. The gap wasn’t big, but it was there, ...