Our previous trailer was a Feather 185RB. We got tired of dragging its rear end, so we installed after-market back wheels. They, and the back bumper, were destroyed by the extraordinary stresses experimented when the weight of the trailer must be carried by its rear end, as the wheels almost leave the road surface.We had to look for other options! Jayco suggested flipping the attachment of the axle to the underside of the springs. Warranty would not be voided, as long as we used the Drexler kit intended for this purpose. A local trailer manufacturer did the modifications. It was less than $300. Problem solved, and we were happy campers for the following two years. No CG problems, and as the height change was about five inches, NO more rear end damage. I hope this will help.