"Donny"  wrote in message
...
 The springs are set for the max weight of the loaded trailer and there
are NO
 SHOCKS on a trailer.  If it is empty the springs will not compress much
(when
 loaded the friction between the leaves provides a little damping) and the
bumps
 in the road cause an empty trailer to bounce on its tires like a
basketball.
 Reducing tire pressure somewhat when empty would help, but then you would
have
 to pump them up again before loading.
 
 JJ
 Hi JJ,
 It's a torsion bar suspension, not leaves, but that probably doesn't
 matter. Spring is a spring, right.
 This wasn't so much bouncing as it was a sort of vibration. When I
 looked in the mirror, you could see the frame doing a very slight but
 quick, wave like action, almost like a guitar string, for lack of a
 better analogy.
 I bet it has something to do with the overall harmonics of the trailer
 frame, I just wonder if there was a way to stop it.
 And how about the VERY slight play between the square hitch tube and
 the hitch bar with the ball on it. How do I take up that slack without
 welding it? It's such a tight space.
 Thanks.
 Donny
 1974 Trojan Sea Raider 25'
 www.picturetrail.com/sixbennetts
 http://thebayguide.com/rec.boats/donny_bennett.html
There is a rubber snubber that goes on the tube.  maybe Bass Pro shops or
Cabelas carries them.  OR try Champion trailers.
Bill