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 ...

In the past, automatic transmission swaps were normally done so the tranny would handle the extra power of a new (or bigger) engine combination. Rarely, if ever, were gear ratios or the benefits of ...

We are quite often asked about the advantages for the family of 4L60E electronic transmissions over the earlier, and less expensive, 700-R4 versions of the four-speed automatic. Other than the cost ...

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 ...