I have a 1998 E350 van. I load the thing with maximum tools and pull the trailer. The van drives like a brand new truck with these Ride-Rite bags from Firestone. Installation was a breeze. In fact, I was loading a van to haul cargo from Virginia to Texas when I realized there was too much room in the back of the van for tired old springs. I installed these bags and hit the streets. It really is like driving a brand new van. I highly recommend this product.