Hi to all. Just found this place the other day. Question is about replacing the wheel on that 'jack' on the front of your trailer. Has anyone ever done it? Looks like it is a plastic, maybe nylon, definately no tread on it whatsoever. Trailer is 10 yyears old this year, I have had it for 6. Sat on a dealer's lot before 2006. Tire looks to be 6 inches in dia and 2 to 3" wide. Has a bolt thru the center with a nut. Any ideas? Thanks.