I've been shopping for a used RV. The one I'm currently considering is 32ft coming at 7900 lbs dry. Its GVW is 9600 lbs, just over what my Expy is rated for. Although the tires I have on it have a higher max capacity then the OEM tires so I think it will take it. I'm pretty sure the truck will be an absolute dog with that much weight so Im planning on getting a tuner and tunes from 5 star tuning. Has anyone else had any success or failure with a trailer this big?