2026 Ram 3500 SRW vs. DRW
Do You Really Need a Dually?
In the world of heavy-duty trucks, the biggest debate isn't "Gas vs. Diesel", it's "Single Rear Wheel (SRW) vs. Dual Rear Wheel (DRW)." For years, the rule of thumb in Kingfisher was simple: If you tow heavy, get a Dually.
But the 2026 Ram 3500 has changed the math. With advancements in tire technology and the high-strength steel frame, the Single Rear Wheel configuration is now capable of towing weights that used to be Dually territory.
So, do you deal with the extra width of a Dually for maximum stability, or do you stick with the SRW for easier parking at the Co-Op? This guide breaks down the hard numbers to help you decide.
The Ram 3500 SRW: The "Stealth" Heavy Hauler
The Single Rear Wheel 3500 is the ultimate "sleeper" truck. It looks like a standard Ram 2500, but it packs a significantly heavier payload punch thanks to its rear leaf spring suspension (as opposed to the 2500's coil springs).
- The Big News for 2026: You can now spec the High-Output Cummins Turbo Diesel (430 hp / 1,075 lb-ft) in a Single Rear Wheel truck. You don't have to buy a Dually to get the "big engine."
- SRW Max Towing: Up to 26,580 lbs (when properly equipped).
- SRW Max Payload: 4,400 lbs.
The Kingfisher Advantage: It fits through the bank drive-through. It tracks better in muddy ruts (duallies often float on top of mud and get stuck). It's easier to park at the grocery store.
The Ram 3500 DRW: The "Unstoppable" Force
The Dual Rear Wheel (Dually) exists for one reason: Pin Weight. While the SRW can pull a heavy trailer, the Dually can carry the massive tongue weight of a 45-foot luxury 5th wheel or a stacked cattle hauler without sagging or feeling "squirrely" in a crosswind.
- DRW Max Towing: Up to 37,000 lbs.
- DRW Max Payload: Up to 7,590 lbs.
- The Stability Factor: With four tires on the rear axle, the contact patch is doubled. If you blow a rear tire on Highway 81 while towing 20,000 lbs, a Dually allows you to limp to the shoulder safely. On a Single Wheel truck, that blowout could be catastrophic.
SRW vs. DRW: The Specs Showdown
| Feature | Ram 3500 SRW (Single Wheel) | Ram 3500 DRW (Dually) |
|---|---|---|
| Max Towing (Diesel) | 26,580 lbs | 37,000 lbs |
| Max Payload (Gas) | 4,600 lbs | 7,590 lbs |
| Rear Width | 83.5 Inches (Standard) | 96.5 Inches (Wide Hips) |
| Rear Axle | 11.5-Inch AAM | 12-Inch AAM |
| Best For | Horse trailers, farm work, daily driving | Hotshot trucking, massive 5th wheels |
| Tire Rotations | Easy (All 4 tires same size) | Harder (Cannot rotate inner steel wheels to front) |
Critical Decision: Check Your "Pin Weight"
This is where most buyers get it wrong. They look at the towing capacity (26,000 lbs) and think the SRW is enough. You must look at the Payload.
- Scenario: You have a 20,000 lb 5th wheel.
- Pin Weight Rule: A 5th wheel transfers 20% of its weight to the bed. That's 4,000 lbs pushing down on your rear axle.
The Verdict: A loaded Ram 3500 SRW Diesel might only have 3,800 lbs of available payload (because the diesel engine is heavy). You would be overloaded on payload, even though you are under the tow rating. For this trailer, you need a Dually.
Which One Should You Buy?
● Buy the SRW if: You tow bumper-pull trailers, gooseneck flatbeds under 18,000 lbs, or livestock trailers. You want a truck that drives like a pickup, not a semi.
● Buy the DRW if: You are hotshot trucking or towing a triple-axle toy hauler. The stability in Oklahoma crosswinds is non-negotiable.
* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges. A negotiable administration fee, up to $115, may be added to the price of the vehicle.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
* Price does not include $89 doc fee.