I have a 2003 LS with the single axle trailer. When driving at highway speeds the guide poles shake back and forth a couple inches at the top.Earlier this year I saw the welds where the posts go through the steps and below at the frame were cracked 3/4 of the way around.I had everything re welded and just took a 1500 mile drive.They still shake.Anyone else have this prodlem and were you able to solve it?I feel after awhile the welds will rebreak.