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 ...

Approaching four decades ago, automakers were scrambling for solutions to fuel economy woes, and GM was no exception. Computer-controlled carburetors and the birth of electronic throttle body fuel ...

Poor reliability is a car problem that isn't as prevalent as it used to be. Automatic transmissions were among the worst offenders, with some going from smoothly shifting between gears while ...

Engines get all the glory, but without a stout transmission backing it up even the most exotic mill is nothing more than a noisemaker. And as engines keep putting out more and more power, the ...

Modern GM transmissions can be more than a little tricky with all the wiring and tuning involved, but nobody said it needed to be that way. If only there were a little computer you could slap on your ...

Add Yahoo as a preferred source to see more of our stories on Google. The most significant difference between General Motors' 4L60E and 4L65E four-speed automatic transmissions is their ability to ...