Ford's "RUG" top loader 4-speed has been around in one form or another since 1964. Up until its first phase out in 1973, it was built as a "conventional" transmission with 1:1 final drive ratio. In ...

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 ...

First-generation Dodges (’89 to ’93) have a lot going for them. They’re cheap, they’re light, and they’re powered by the legendary 5.9L Cummins engine. In the case of our ’89 Dodge D250 project ...

For more than a decade, installing an overdrive-automatic or manual transmission into a vintage Mustang has been a popular upgrade. It's more common these days, but some people still aren't convinced ...

In automobiles, "overdrive" refers to a transmission system with a wide ratio, that is, a number lower than 1:1. That setting allows the engine to sustain a given speed at lower rpm than usual, which ...

Direct drive transmissions are well suited to relatively flat on-highway applications. Photo: Eaton The long-running debate over which type of transmission — direct drive or overdrive — provides the ...