General Motors' 4L60-E automatic transmission is one of the most popular transmissions ever built. It was initially designed to replace and modernize GM's older Turbo 700R4 — also known as 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 ...

The 4L60E and 4L80E are two of General Motors’ most discussed automatic transmissions, and the choice between them shapes how a truck, SUV, or LS swap behaves on the street and under heavy load. Both ...

Despite their similar names, there are some notable differences between the 4L60E and 4L65E. These differences come in their ...

There’s lots of talk about making horsepower these days. Sure, this is the golden age of horsepower but all that power does little good if the transmission fails to deliver the power to the tires.

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 ...