I have a ’14 silverado. Has the 5.3. I basically use it as a car. Only has 45k miles on it. With that type of use I think the motor is fine. Solid mileage. Pulls my 18ft boat just fine but most lakes are close to me. The tranny really blows though. Usually notice it when going slower speeds. I live in a town with some hills. Traveling up a hill going town speed limit, it often shifts gears so hard it feels like motor fell out. Seems like it just can’t find gear. I have ’05 ford f150 with the old 5.4 triton motor. Usually pull boat and decoy trailer, hunt/fish with that old dog. 180k miles and runs perfect. Those old 5.4s were pretty good.