My truck has the warn Premium Hubs on it. Will the auto 4 wheel drive still work? Thought I read some were that when the Warn hubs are installed the Vacuum engage will not work any more? If true this raises a concern for me because most of my towing is done in the winter (snowmobiling) and we get a lot of different road conditions were i need to switch between 2 and 4 wheel drive on the fly. Any Info would be great!!