Thanks for the heads up. I was almost sold on them. Why not bob? Because the ride is better?
I'm concerned about maneuverability on long dirt roads. I like to backpack Mtn bike and explore mining roads etc. The camper idea is exactly what I'm after. I'm wondering if I can mount a box from the lmtvs on a 5 ton.
Pretty simple to mount whatever box you want on these trucks. The frame width on all medium and heavy duty trucks is 34" from outside of frame rail to outside of frame rail, just have to add the new mounting brackets onto the frame.
If you decide on a 5 ton tractor it might be cheaper/easier to find a box from a m109. It's 12ft long, many were surplussed. The box from the LMTV is newer but will probably cost more.
I advise against bobbing for a offroad truck because of the smoother ride, better traction, better weight distribution, and axle articulation. The smoother ride will help your camper last longer, lead to less maintenance on the truck from the less severe vibrations, and a better ride for the driver/occupants. Extra traction and better weight distribution are a given with the extra set of tires on the ground to share the weight load. Axle articulation is a huge difference. Single axle leaf spring and heavy duty truck air bag suspension travel is 10" or less per wheel. The tandem axle rear suspension on the 5 tons is roughly 2 feet per wheel.
For concerns about turning offroad. The stock rear suspension allows the axles to move side to side some and the truck will drag an axle over, it is designed for that. This leads to a similar turning radius between a single rear axle or dual rear axle with offroad driving, emphasizing offroad driving.
Couple pics just to give an idea of how the stock rear suspension moves. Rather than lifting the rear of the truck up and over that berm it just pivots each wheel over individually, making for a smoother ride.