I understand there are a lot of variables at play. However, in each instance where my front wheels loose traction my rear wheels never provide any sort of force at all. If your theory is correct, if I jack up my vehicle using 4 secure jacking points with all 4 wheels off the ground and place the vehicle in drive all 4 wheels are going to spin? I’ll try it and see what happens. Every time, including this morning, the Escape gets caught up on snow and a slight incline you should be able to feel if there is some sort of assistance from the rear end when your front tires are spinning and the vehicle isn’t going anywhere. Never have I seen or felt the rear end provide any sort of assistance. What type of monitoring system would I need to check to see what my rear wheels are actually doing?