I have a new 2010 Pace 5 X 8 with a Dexter 3500# axle. As in keeping with the general consensus on the forum, I decided it would be good to repack the wheel bearings just to be on the safe side.
One side was OK, but not very much grease. On the other side the hub was full of fine grit particles. The trailer had less than 5 miles on it so the grit hadn't worked it's way into the Chinese bearings yet. I would have expected better from Dexter. This is the second new trailer I have found what appears to be mill tailings in the hubs. The other one was from Harbor Freight. New trailers as well as used need to have the bearings and hubs cleaned and repacked for peace of mind if nothing else.