I have heard of this happening to a couple of user and I have had it happen to me a couple of times. Just a couple of weeks ago whilst I was in Colorado a fellow Bronco puller called me asking if I had it happen to me. Up until that time it had only happen one time. Well on the way out of Colorado coming into Monte Vista I was slowing down from 55 to 65 with some braking and it felt like had dropped an anchor. My aux brake system was originally designed to be used with active brake boost so...
Flat Towing, unexpected brake lockup.
Flat Towing, unexpected brake lockup.