The GM 700-R4 is one of the most popular overdrive automatic transmissions used in street rods. And why not, you might ask-they have a 3.06:1 First gear for launching from a standstill, a .70:1 ...

In the BeginningThe 700-R4 was first introduced in the '82 Corvette. On paper, its specs looked pretty good: The trans had lower First and Second gears (3.06 and 1.63, respectively) than other ...

Getting the best out of something usually means taking something else out of the equation to get it; a little give and take, if you will. For instance, in order to get a small-block to create ...

It was just a little more than a year ago that we stumbled onto a topic-swapping later-model, wide-ratio overdrive transmissions into pre-'82 Corvettes-that has stirred up an unbelievable amount of ...

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 ...