I own a farm, so there is good bit of heavy loads pulled around off pavement. I also work on the road, I tow alot of weight up and down the highway. I am looking for somthing to put in the front & rear diff, that will work great offroad and have good roadmanners. I have been trying to do research on my own time with the many different types. I was just curious about the Power Trax, due to the fact that I would not have too resetup my differentials.