A Pontiac's speedometer is as important as any other gauge found within its instrument panel. It was relatively accurate when new, but any deviation from original tire size and/or rear-axle ratio ...

You might recognize this Silverado 1500 from a Fantastic Four article in 2007. This truck was our first GMT-900 to go under the knife, and we really loved the look we got from the Pro Comp lift, ...

There are many more driven gears available than drive gears. In traditional GM transmissions, typically available TH350 (also fits most manual boxes) driven gear selection ranges from 18 to 25 teeth.