The difference between the 4L60E and 4L65E transmissions is that the latter is stronger and uses a different bell housing; it ...

With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...

While we can't blame you for involuntarily convulsing in laughter after reading that last line, Mike Kurtz of Century Transmission is about to make good on that claim. With GM's recent updates to the ...

Using our normal bull-in-a-china-shop approach, we were able to get the wrong transmission behind an engine that it wasn’t designed for. Of course, we didn’t know that at the time, and built the ...

Remember when the "new" 700-R4 came on the scene? Well, the 700-R4 was introduced 30 years ago in 1982 and is still a solid choice for an overdrive transmission for carbureted cars. The GM 4L60E ...

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 ...