You know that gut drop when your car starts to sound or feel off. Maybe it's a strange shudder, a delayed shift, or that dreaded warning light on the dash. You take it to the shop, hoping it's just a ...

The truck's original C6 had been rebuilt, equipped with a shift kit and heavy-duty components. The Ford's shortcoming was the 3.78:1 rear gears, which meant the 460 spins three-grand plus at highway ...