I just traded my CJ5 for an 89 D250 with the cummins. It's bone stock and needs some love as far as suspension goes. Anyway, I've toyed with the idea of using it for the truck camper but all the stick...
From what little I've been able to find, they are saying the front is 4000 and the rear is 5450. That seems insanely high to me. Also, I've only been able to find that the truck weighs 39**lbs. Which seems extremely low to me. Especially since the motor weighs 975lbs alone.