18,000 would be if you are towing a travel trailer (bumper pull or class V hitch). The 2500 is not designed to hold more than 2500- 2700 bs in the bed. If you are 12,000 lbs loaded, you are probably pushing the limits of your rear axle, springs, tires.
It might not ride very well under these conditions.
20% of 12,000 lbs is 2400 lbs. A fifth wheel puts about 20% of the weight in the bed. Sometimes as much as 25% which would tilt you up to 3000 lbs in the bed. Todays fifth wheel manufacturers tend to try to put more weight on the truck.
It might not ride very well under these conditions.
20% of 12,000 lbs is 2400 lbs. A fifth wheel puts about 20% of the weight in the bed. Sometimes as much as 25% which would tilt you up to 3000 lbs in the bed. Todays fifth wheel manufacturers tend to try to put more weight on the truck.