Did you check and repack the wheel bearings? I have bought two of the folding 4x8 trailers and both of them needed the tar they called grease cleaned off and some good grease put on them. I bet they would have burned up within 100 miles if I didn't grease them up good. Also get some spare 1157 bulbs. The stock ones seem to last a few hours or so, at least with me pulling the trailer
