donn0128 wrote:
You have a 1992 Ram 5.9? That truck has as I remember a 8800 GVWR. What does it scale loaded ready to go? 5000 pounds if you actually did have 3700 pound payload. Sadly its more likely your real world payload will be around 1500 pounds.
Sadly, you should not be such a payload pessimist.....
To the OP, some of your questions depend on what camper is going on it.
Most any camper will clear the bed rails. Your truck is old school. That’s really only an issue with the newer trucks with deeper beds
Bed mat not necessary unless you find the camper sliding around.
Yes, take “dry” camper weights with a grain of salt and 1000lbs over dry weight when wet, full and ready to camp is a good approximation
Welcome!