The 6L90 transmission is a six-speed automatic that was introduced in the GM line of trucks and SUVs in 2007. It is built by General Motors and has been used in a variety of their vehicles, including the Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and more. This transmission is designed for use with engines that produce up to 450 lb-ft of torque.
While the 6L90 can handle up to 450 lb-ft of torque, it's important to keep in mind that this number will vary depending on other factors such as vehicle weight, tire size, and driving habits. In general, though, the 6L90 is a durable transmission that can stand up to some pretty heavy duty use. If you're looking for a transmission that can handle a lot of power, the 6L90 is definitely worth considering.