[n4qpcham]

I had the same mounting problem on my Montana HC 5th wheel. I got this rack from etrailer.com, Swagman 4 Bike Carrier RV Mounted Bike Rack Item #S80600. You mount the mounting bolts from the bottom up, instead of the top down, underneath the trailer. I also bought bumper reinforcement brackets from SafetyStruts.com or www.mount-n-lock.com. They cradle the rear bumper on three sides to keep the bumper from rolling and breaking the welded mount or twisting, because each bracket is mounted to the trailer frame member with three nuts and bolts. They claim to support 400 lbs., so you can "Put more gear on your rear" to quote the MnL web site. Had them a year so far carrying a Schwinn Meridian 3-wheeler and no problems.