Truck camper and towing

stevenal wrote:
Is that 5" to the COG of the camper alone? If so, your actual COG will move aft when you put weight on the tongue. Where does your truck's camper certification say your COG should be?

You’re getting a little out over your skis here…too many episodes of Matlock for some folks maybe….(funny as I just took a break from reviewing deposition documents and it clicked that there’s a lot of wanna be lawyers out there! Lol)
What is important is whether the chassis will handle the weight (which it will just fine, including the added load of the super truss and trailer (although personally I’d shorten up the extension as much as possible)), whether the tires and wheels will handle the weight and whether any weight behind the rear axle will reduce the front axle load enough to cause any danger or ill handling.
The camper placement alone won’t even get close to unloading the front axle to anywhere near even the as built gasser trucks. That tank of an engine that is also great ballast. And even with camper and boat, body measurements will confirm that it’s definitely pulling weight off the front axle, but the front end is so heavy with the diesel, the truck can give up 6-700lbs of FA weight and the only thing that changes is the bad roads are a little easier on the ball joints.

Anyone can do the math if they are reasonably capable of solving simple moment equations and prove the same thing on paper as real world, that the OPs setup isn’t going to reduce the FA weight enough to cause an issue.
So now we’re back to rear wheel assemblies and rear suspension. And that’s it.