I have an 18' Continental Cargo Auto Plus that's getting a little old, but I love it. It's a 1999 with the 10,000 lb axles. My question is this: I have torsion bars on this trailer, and one side seems to be sagging quite a bit. What can I do about it? Can I adjust the torsion bars? Is there a removable assembly that can be replaced? Any advice much appreciated, I'm not sure how much further this is going to sag and what the potential issues may be. Can't afford a new trailer, so I need to fix this one and I'm hoping it doesn't mean I need two new axles!