How do you tell if you have the 4L80E or the 4L85E?

Answer 1

To determine if you have a 4L80E or a 4L85E transmission, check the model identification tag typically located on the driver's side of the transmission case. The 4L85E is a more robust version of the 4L80E and often has a higher torque capacity, which may be indicated by a different tag or specific model number. Additionally, the 4L85E features a few internal upgrades, so inspecting for reinforced components during a visual inspection can also help distinguish the two. If in doubt, consulting a professional or referring to your vehicle's specifications can provide clarity.