For have owned our Crusader 270RET for almost two years now and for the past three months we have been on the roads thru Canada and Alaska. For the whole time we have owned the coach, we have an on=going problem with shake when either myself, weigh around 200lbs or my bride, who weighs aroind 107lbs walks around inside the coach, the things shakes like an elephant is dancing around inside. We have tired the king pin tri=pod, x-chocks, rear levelers fully extended and lately a pair of extra scissor jacks under each side of the axles, nothing seems to work, we need some help!!!!!