Looking at going from my 2019 5.3L silverado to the 6.6L gasser. I am getting rid of my truck to go crew cab either way just interested in the 6.6. Just looking for real world experience with it. Biggest thing I will be hauling is a 20' 10k dual axle open car trailer with a roughly 3600 lb vehichle on it for drag strip days. Will be a daily for my wife but she drives about 2 miles to work. So it will basically just be for my drag car on a trailer and side by side/quad/dirt bike hauler going up north here in Michigan. Relatively flat roads here.