I have a 2007 Big Tex 10k gvw skidsteer trailer from about 120 miles away. It was a Case 95XT with solid tires so it obviously put the trailer overweight. The trailer pulled fine and the front axle seems fine but when I arrived back home the rear wheels were covered in grease that leaked out of the hub/bearing. What's going on here? Should I just re-grease them? Or do they need to be replaced? Moving the 95XT was a one time thing or I'd upgrade to a heavier trailer. Thanks.