Originally Posted by ggardn
Under the big covers there are plastic covers right on the bearings. They are held in with o-rings. I have one that is broke a d would like to replace with metal if possible
Can you post a pic? I think we all may be talking about different things, and a photo will help clear up the confusion. AFAIK, the dust caps are all stamped metal, and pretty much just hammered on the hub. Almost all brake drum and hub assemblies are the same, either 10" or 12", and FR wouldn't have a reason to put something exotic on your trailer.