I have a 1982 tandem axle Calkins trailer. I do not trailer it long distances, as each trip is less than 10 miles round trip. While taking the boat to the lake tonight, my front hub exploded. Grease is everywhere, but I managed to fish and get the trailer home ok. I took the tire off (it's the one where the bolts go into the drum/hub, no nuts present) and grease is everywhere...all over the drum, shoes, etc. Now, I cannot figure out how to get the drum off. How can I do that? The drum has a bearing buddy (or at least that's what it looks like) presses in it. I can move the drum about 3 to 4 inches from the backing plate, but I cannot get it fully off. Next question is, where can I get a replacement hub from, and how does the hub come off?<br /><br />Thanks in advance for any advice!