Just bought a trailer. Looks like a standard metal trailer but with wood boards on the bottom. New they are about $800 I got this one used for $525It has a lotta rust on the underside and some on the ramp/gate, but nothing that I didn't think any primer or rust remover couldn't take care of. I was wondering though, is it normal for an empty trailer to bounce up and down some; making your truck ride much more bouncy than normal? After a while of going down the streets on the way home with it I figured I'd strap my 21 inch on it to give it a little weight even though it wasn't much. It seemed to help make it much less noisy and bounce less, but the mower then bounced around. Maybe I shoulda used 2 straps and not just one on it. But is this normal for a trailer to be bouncy without a load? I'm hoping when I put my 450 lb scag wb in it, that it will stabalize it much more and not shake me up and down so much in the truck. Also, is there such thing as a "trailer tune up"? I'd like to take it in to have it checked for safety and things as it could be several years old. The guy told me it's only 1 year old, but I don't think so.