Im not normally a numbers guy...but just looking at the ram towing guide I suspect your right at your payload max before you load anything in the rv or truck. Hopefully somebody will be able to quote specifics when you provide your truck specs (quad/crew/mega auto/manual rear end gearing etc). All I saw by guessing 2wd, quad, good rear end gearing was 2500lb payload. That means dry your fully loaded without passengers, hitch etc. If im wrong I apologize now but it looks like too much rv for your truck. Im not familiar with the add on's so Im guessing more for power?