The first thing i would check is particularly if it is twin axle, check the trailer is riding level, to do this hook up the trailer and park on level ground, ensure the height at the cack of the trailer is the same as the front, if it si different look at altering the height of the car tow bar by using a spacer. If this does not work putting 2 leaf springs on instead of 3 will make the trailer better for light loads altough it will make it unsuitable for heavy loads as yo will simply destroy the springs.
chris
January 2008
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix trailers.