Picked up a used RamLin trailer for my 16 IPB a few months ago that was in real nice shape. The only rust it has is on the bottom low spot of the axle. The fenders had just a little but they are easy enough to replace. My question is, when that axle gets to the point where I think that it needs to be replaced, is it possible because of it being welded to the frame? Any thought are appreciated.....thanks! :-?