Hi all need some advise.! Looking at a 5th wheel that weighs UVW IS 14168, dry hitch is #2775 . I have a 2020 Larimie Longhorn 2500 6’3” bed length and 373 gears and a 6.7 Cummins and question is can I pull it , do I need air bags, and should I get a slider hitch.All opinions and knowledge much appreciated.
I'll lay this out as simply as I can. First response is... absolutely not. 2500s have a horrible payload rating. That is 100% 3500 DRW territory.
1. Only look at gross weight of the trailer. Dry weight does not matter.
2. You need to look at your payload, subtract the weight of everything that wasn't in or on the truck when it left the assembly line.w THAT is the number your hitch weight should remain below.
3. Airbags do absolutely nothing to increase payload. The weight of the trailer still sits on the bags, which still sit on top of the axle.
4. You can slightly go above payload, as long as you never exceed rear axle weight rating.
The trailer you're mentioning has a gross weight rating that's likely of just shy of 17k lbs (would need to know the cargo capacity of the trailer to confirm). The real wet pin weight is likely going to be somewhere around 3,800 lbs. That exceeds your payload by over 1,500 lbs and likely your rear axle rating as well.
A general "rule of thumb"... if a 5th wheel is much over 10k lbs, it needs at least a single rear wheel 3500 with leaf springs. Much over 13-14k lbs... time to look at a dually.
Smaller trailer or bigger truck.