The last nail in the coffin was technological advancement.

From 4L80E and Allison six-speeds to the 10R80 and Gear Vendors, these overdrive transmissions reshaped street performance, ...

Those of you who drive older trucks might wonder about the magic that apparently gives newer rigs the ability to produce such impressive fuel-economy figures. You may know that newer trucks tend to ...

Over the years, the trucks have certainly become more sophisticated. Take transmissions for example. At one time the only choices were "three-on-the-tree" or "four-on-the-floor" manual boxes. When ...

The price of street gas being what it is, even the most hard-core hot rodder must grasp the consequences. Certainly, they can curtail driving to reduce fuel cost, which often precludes traditional ...

Direct drive or overdrive? That’s a years-old question among truck operators concerned with spec’ing transmissions: Should top gear be a direct 1 to 1 ratio, where the output shaft spins at the same ...

Since the health of our planet became a major societal focus decades ago, automotive engineers have been on a mission to find a balance between performance and efficiency. In the past, the two ...

Automatic transmission cars have the Overdrive (O/D) function which allows a driver to drive faster on the road. The o/d is the highest gear in an automatic transmission. The overdrive function ...