Pulling a 5th Wheel or Gooseneck? How to Set Up Your 2026 Ram 3500

If you’re eyeing a large fifth-wheel camper, a gooseneck horse trailer, or a livestock hauler, the difference between a standard Class V receiver hitch and a fifth-wheel or gooseneck hitch isn’t just about the hardware — it’s about the engineering underneath. The Ram 3500 is built to handle both, but only if you configure it correctly.

This guide walks you through the Ram 3500’s fifth-wheel and gooseneck capabilities, the $745 prep group that sets you up for success, tongue weight rules that matter, and which truck configuration will actually handle the big trailer you want to pull. Whether you’re a Black Hills camper or a South Dakota rancher, get the details that dealers often skip.

Does the Ram 3500 come ready to tow a 5th wheel?

Not out of the box. The base Ram 3500 ships with a standard bed and provisions for a Class V receiver hitch — which works great for conventional trailers. But if you want to mount a fifth-wheel or gooseneck hitch, you need to order the factory 5th Wheel/Gooseneck Towing Prep Group ($745) from the start.

This prep group includes factory 7-pin bed wiring, a 12-pin connector in the bed, and structural provisions for an aftermarket fifth-wheel or gooseneck hitch platform. Without it, you’re adding complexity and cost after purchase — and potentially limiting your options for large trailers.

Bottom line: If you even suspect you’ll want to pull a fifth-wheel or large gooseneck trailer, order the prep group when you buy. It’s $745 now, or it’s $2,000+ and a service visit later.

What is the 5th Wheel/Gooseneck Towing Prep Group on the Ram 3500?

The 5th Wheel/Gooseneck Towing Prep Group ($745) is a factory option that builds the structural and electrical foundation for a fifth-wheel or gooseneck hitch. It includes three critical components:

Factory 7-pin bed wiring connects trailer lights and functions directly from the truck’s electrical system. 12-pin connector in the bed handles power distribution for the hitch and any trailer-mounted accessories (brake controller, battery charger, etc.). Structural provisions reinforce the truck frame and bed floor to safely anchor the fifth-wheel or gooseneck hitch platform.

When you buy a Ram 3500 with this prep group, installing an aftermarket fifth-wheel or gooseneck hitch becomes straightforward: the hitch installer bolts to factory mounting points and taps into the existing 12-pin connector. Without the prep group, you’re installing a hitch to a truck bed that wasn’t engineered for the concentrated load and towing dynamics of a fifth-wheel or gooseneck trailer.

What is the maximum tongue weight on the Ram 3500?

Tongue weight matters because it sits directly over the truck’s rear axle — and too much will overload it. The Ram 3500 has different limits depending on your hitch type and truck configuration.

Class V receiver hitch (conventional trailers): Maximum tongue weight is 2,300 lbs on the 3500, compared to 2,000 lbs on the Ram 2500. Fifth-wheel or gooseneck hitch: The maximum tongue weight guideline is 15% of the gross trailer weight (GTW) — which is more than the 10% rule for conventional hitches. This is because fifth-wheel and gooseneck hitches distribute the tongue weight more directly over the truck’s rear wheels, where the dual rear wheels (on a DRW model) can handle it.

Example: If you’re pulling a 24,000 lb gross trailer weight with a fifth-wheel hitch, the maximum safe tongue weight is 3,600 lbs (15% of 24,000). If you tried that with a conventional Class V receiver hitch, you’d max out at 2,300 lbs and create an unsafe, unbalanced load.

When do I need a 5th-wheel or gooseneck hitch instead of a conventional hitch?

You need a fifth-wheel or gooseneck hitch when your trailer gross weight rating (GTWR) exceeds 23,000 lbs — or when tongue weight would exceed the receiver hitch limits. Here’s the practical breakdown:

Under 23,000 lbs GTWR: A Class V receiver hitch works fine. Many horse trailers, utility trailers, and small fifth-wheels fall into this range, and they’ll tow safely on a conventional hitch.

23,000–36,000+ lbs GTWR: A fifth-wheel or gooseneck hitch becomes mandatory. Large livestock trailers, anhydrous ammonia tanks, big grain trailers, and most modern fifth-wheel campers live in this range. The fifth-wheel or gooseneck hitch is engineered to handle both the raw weight and the tongue weight load without compromising safety or handling.

Key advantage of fifth-wheel/gooseneck hitches: They reduce tongue weight per the 15% rule (vs. 10% for receiver hitches), which lowers the load on the truck’s rear axle and suspension. This means you can tow heavier trailers with better control, shorter stopping distances, and less wear on the truck. For ranchers and ag operators regularly pulling livestock trailers or grain trailers, the fifth-wheel hitch is worth the $745 prep group investment.

What is the best Ram 3500 configuration for pulling a large 5th wheel camper?

If you’re planning a Black Hills or Montana camping trip with a large fifth-wheel camper (24,000–38,000 lbs), you need the right Ram 3500 configuration from the ground up. Here’s what wins:

Cummins diesel engine: The 6.7L Cummins delivers 1,075 lb-ft of torque and can tow up to 36,610 lbs on a dually (DRW) configuration — with 4×4 drive and a 3.42 rear axle. A HEMI on a dually maxes out at 18,150 lbs, so if you want a large fifth-wheel, diesel is essential.

Dual rear wheels (DRW): Single rear wheel (SRW) 3500s max out at 26,080 lbs with the Cummins diesel. That works for mid-size fifth-wheels, but if you want flexibility and reserve capacity, the DRW configuration gives you the extra traction and load-carrying ability for heavier campers and rough terrain.

Auto-Level Rear Air Suspension: The Ram 3500’s class-exclusive auto-level rear air suspension automatically adjusts ride height under load, keeping your truck level when you’re hooked to a heavy fifth-wheel. This improves stability, reduces sway, and makes towing feel controlled even on rough roads. Pair this with the Max Tow Package to get the best platform.

The ideal fifth-wheel-pulling Ram 3500: Cummins diesel, crew cab 8-foot bed, DRW, 4×4, 3.42 rear axle, with 5th Wheel/Gooseneck Towing Prep Group and the Max Tow Package. This configuration gives you 36,610 lbs of towing capacity, auto-leveling suspension, integrated brake controller, and all the infrastructure to safely and comfortably pull a large fifth-wheel camper across the Northern Plains.

Can I tow a gooseneck livestock trailer with a Ram 3500 SRW?

Yes, but with limits. A Ram 3500 single rear wheel (SRW) with a Cummins diesel can tow up to 26,080 lbs with a gooseneck hitch. That’s enough for many livestock trailers, small to mid-size gooseneck grain trailers, and horse trailers. But it’s not the maximum that the truck is capable of.

SRW vs. DRW for gooseneck towing: The SRW 3500 has a single rear wheel on each side, while the DRW has dual wheels. That single rear wheel on the SRW can only carry a percentage of the load that dual wheels can. For a light gooseneck livestock trailer (8,000–12,000 lbs), the SRW is fine. For anhydrous ammonia tanks or heavily loaded grain trailers (20,000–36,000 lbs), you’ll want the dual rear wheels to distribute the load safely and maintain control.

Real-world scenario: A South Dakota rancher pulling a loaded livestock trailer to the stockyards — typically 15,000–20,000 lbs — can use an SRW 3500 with Cummins. But if that same operator is pulling anhydrous ammonia in the spring or heavily loaded grain in the fall, the DRW becomes the safer choice because it distributes tongue weight across four rear wheels instead of two.

Don’t discount the SRW 3500 for gooseneck work — it’s a smart choice for many North Dakota and South Dakota operations. Just be honest about your heaviest load and make sure the truck you choose has the GCWR and towing capacity to handle it safely. For details on SRW vs. DRW overall, check our SRW vs. DRW dually guide.

5th Wheel vs. Gooseneck Hitch Comparison

How to Choose the Right 5th Wheel or Gooseneck Configuration

1. Identify your heaviest trailer. Know the gross trailer weight (GTW) of the largest trailer you’ll pull. If it’s over 23,000 lbs, you need a fifth-wheel or gooseneck hitch — not a conventional receiver hitch.
2. Calculate required tongue weight. For a fifth-wheel or gooseneck, use 15% of the GTW. A 30,000 lb trailer requires 4,500 lbs of tongue weight. Make sure your truck’s suspension and frame can handle it.
3. Choose your engine: Cummins or HEMI? If you’re pulling over 23,000 lbs regularly, Cummins is mandatory. The HEMI DRW maxes at 18,150 lbs — not enough for large fifth-wheels or gooseneck trailers. See our towing capacity guide for detailed engine comparisons.
4. Decide: SRW or DRW? Single rear wheels max out at 26,080 lbs (Cummins). Dual rear wheels max out at 36,610 lbs (Cummins). For large fifth-wheels or heavy livestock/grain trailers, DRW gives you safety margin and load distribution.
5. Order the 5th Wheel/Gooseneck Towing Prep Group ($745). Do this when you buy the truck. Factory wiring, 12-pin connector, and bed floor reinforcement cost $745 now — or $2,000+ and dealer complications later.
6. Add the Max Tow Package for air suspension. This includes the class-exclusive auto-level rear air suspension that keeps your truck level under load. Essential if you’re regularly towing a heavy fifth-wheel.
7. Work with a hitch installer after delivery. Once your Ram 3500 arrives, a professional installer will bolt the fifth-wheel or gooseneck hitch to the factory mounting points and connect it to the 12-pin connector. This is a straightforward 4–6 hour job.

5th Wheel & Gooseneck Towing FAQ