This is a question about a 2014 Chevrolet Silverado pickup. I am studying the power flow of a 6L80 six speed automatic transmission. I can see the reaction elements for 1st, 2nd, 6th, and reverse gears. However I am having difficult with the reaction elements for 3rd, 4th, and 5th. Can you help? This sounds like a good question for Transman614.
Second question, what is the improvement in fuel economy between the 6L80 behind a 350 ci engine against a 4L80 behind a 350 ci engine, both with the same rear ratio; the same diameter tires and vehicle weight?