I wouldn't try to convince anyone that the XV-JPs aren't heavy, but the original Chrysler GVWR doesn't really apply, I don't believe. Assuming I understood this correctly, ER had the vehicle with its suspension modifications recertified at an appropriately higher GVWR by a professional engineering firm, which is why ER has the manufacturer's blessing to sell Jeeps with their modifications. I've got this sizeable plaque stuck on the back to show the signoff from the engineering firm:
Originally Posted by TCM
FWIW, while no lightweight, the XV-JP never feels overloaded and I was pleased to find that the handling is secure and satisfying. Cornering isn't the least bit spooky and the vehicle isn't tippy. The bottom line is that EarthRoamer did a fine job of adding a ton of weight without doing anything that makes the vehicle less safe or satisfying to drive.
2007/2012 custom Jeep Rubicon EartthRoamer motorhome
2004 Jeep Grand Cherokee Limited
2003 Mercedes 2500 mid/tall Sprinter camper
2006 Honda PS250 Big Ruckus Expedition Scooter
1996/2002 Honda XR600R highly-modded