The Roadmaster bar is more expensive but it is also properly engineered. The U bolt mount mount on Hellwig does not fit properly and looks to be an off the shelf hardware store part. The u bolt should be tight to the suspension casting. They should at the very least used a top and bottom plate with bolts tight to casting. The thickness of the tab is suspect also, but in this case the u bolt will eventually stretch and turn protecting it from bending. This mounting system is fine for a light sports car but not sufficient for a heavy motorhome. I will post a photo of the Roadmaster mount on my 2006 e450 when I figure how.