Hey Carl, no offense taken! It's good advice. At this point I'm trying to decide between the 4.11 and the 4.57. 5-6 times a year I need to go to the quarry and pick up a load of rock or cinder and I'd like to be able to use the full capacity of my truck. But I'd be pretty embarrassed to get the truck loaded and then not be able to get it moving! If I'm sure the 4.11 will work OK with a fully loaded truck then that's the way I'll go. Then I just have to find one, not an easy task here in Hawaii! Of course I could always make 2 trips to the quarry instead of one but where's the fun in that?