GM Truck Transmissions Ranked Worst to Best | What Used Car Buyers Must Know Before Buying

Описание: When buying a new or used vehicle, most people focus on the engine, but the transmission is just as important and often far more expensive to repair. In this video, we break down the most common GM automatic transmissions used in trucks and SUVs, the real-world problems they are known for, and how they actually perform over time. Understanding what transmission is in a vehicle, what issues it comes with, and how those problems show up can save you thousands and help you avoid buying the wrong truck or SUV.

We rank and explain the GM 4L60, 4L60E, and 4L65E, the GM 6L80, the GM 4L80E, the GM 6L90, the GM 8L45 and 8L90, and the GM 10L80. This is based on real-world failure patterns, rebuild experience, and long-term ownership results, not on brand loyalty or internet arguments. The goal is to help regular drivers understand design limits, maintenance risks, and which transmissions tend to cause the most regret when buying used.

Knowing what transmission a vehicle has is just as important as knowing what engine is under the hood. A great engine paired with a problematic transmission is where real cost and frustration show up. In the next video, we show you exactly how to identify which transmission is actually in the vehicle you are looking at before you buy it.

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