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 ...

In this video, I explain what a Lenco planetary transmission is and its purpose. I will detail how planetary gear sets work using a model I created and discuss why Lenco planetary transmissions are ...

Anyone who's spent any time driving knows that semi-trucks are a fixture on American roads. Vehicles from the most popular semi-truck manufacturers covered just over 500 billion miles in 2022 alone, ...

Long before automatic transmissions like the 4L60E earned such bad reputations, General Motors entrusted the Turbo Hydra-Matic family to handle shifting duties in its legendary lineup of muscle cars.