The 700R4, also known as TH700R4, is a General Motors four-speed automatic transmission that was used from 1982 to 1993. Internally called a Hydra-Matic MD-8, it was ...

We're roundin' third on our maintenance kick on Truckin magazine's longest-running truck project. What started as simply knocking the dust off our '64 "GMC" to hit some cruises during the great ...

Unfortunately, until recently all you coulddowas imagine, for like most modern drivetrain products, the 700's design dates back to the late '70s, a dismal, depressing period when it was thought that ...

Retro-fitting modern, overdrive transmissions into early musclecars is nothing new, and with the rapid raise in gas prices (only two dollars a gallon as this is being written) the trend is sure to ...

Imagine a late-model, high-tech automatic 4-speed trans with a lower first gear (3.06:1) than the obsolete 2-speed Powerslide, or even the 3-speed TH-350 or TH-400. Imagine the effect of a high-gear ...