I wanted to trade my ‘01 GMC extended cab 4WD Sierra on an F-150 but the Ford was more than 10 percent more expensive than the 2011 GMC, which I bought.
I was surprised to discover the 2011 Sierra no longer featured four wheel disc brakes (the back brakes are now drums.)
The new truck has the same 5.3 gasoline motor but with 6 speed auto transmission, it gets slightly better mileage. It doesn’t feel as strong as the ‘01 as the transmission is constantly hunting taller gears.
If it’s hunting for gears i would have to think it’s running hot.