Look in a parts book for brakes etc. From what Ive seen, the brakes are larger on the DRW for the most part. Even though the rears & driveline may be the same, the brakes are usually or can be a larger diameter and wider pad, along with the heavier duty springs in the 350 series. I found this when looking at parts for a one ton I had.

Especially with surge brakes. EoH = best, but surge--it's all over.

I stand corrected. Looks like the rear calipers have larger pistons, providing more bias to the rear. Randy

We went on a motorcycling trip last year in Europe, almost all the big trucks and dump trucks I saw had a pair of of wider singles in the back. I talked to two drivers and they both said that they really didn't notice the difference.
Even after hearing this I'd much prefer to have 8 drive wheels on my dump trucks and 4 drive wheels on my tow rig. It's not just the false peace of mind it may offer me but also the abilty to still move my load in a flat back tire situation on one of my rear axles.

See ya,
Kelly

Exactly what I did when I was hauling for a living. All pleasureboaters should have a checklist they follow at every stop(for gas and such). Peace of mind is priceless on the road.

Doesn't the real bottom line come down to the truck needs to have the capacity to haul the load in question. It should be within the legal parameters of the truck mfg and the DOT. Otherwize that guy who feels very comfortable towing his 42ft trailer with 30,000 lbs with his SRW truck with air bags or not happens to get into an accident at which point his insurance co won't pay out because his confidence wasn't within the laws. So now what? Just because you CAN do it doesn't mean you SHOULD do it. I'd rather have more truck than the trailer needs than more trailer than the truck can handle. It's all about that PANIC situation, what then offshoreEX?

What what?? LOL! so you think with over 1 million miles hauling commercial with a SRW Dodge and a 50ft trailer I have not had any panic situations? I encounter them everyday! I am legal, if you actually read what I wrote. I am insured, don't know what car salesman tried to sell you on that BS, I am DOT legal, again read what I wrote. Last week I had 2 hardcore level one DOT inspections in georgia and new mexico with a 100% perfect inspection, no violations. what else do you want out of me?

You dually lovers talk about safe but then say "well if my trailer brakes go out I would rather have a dually to handle it". WOW thats really safe! LOL!

When MY trailer brakes go out, I PULL over and fix them. Now thats safe. If I could not fix them I would hire a mobile mechanic or tow truck.

Again I ask, if a dually is so much safer please post pics of your dually trailers. If not then stop saying that a SRW can not be properly set up to tow as good or better then a dually.

Yes a Dually can be set up to haul as good or better then a SRW. Yes duallys are bad ass. I love all trucks and have owned many.

Just trying to share my positive experience, and facts, about towing with a SRW.

It's still all about the weight of the load and the weight of the tongue or load on the truck. So your SRW truck is rated at what tow weight? Those single tires are rated at what load each? And I've seen plenty of dual wheel trailers, HEAVY equipment trailers and boat trailers. Why? Because of the weight of the load period. And if you've driven both dually and SRW and can't feel the difference in stability simply due to the wider track and bigger foot print that speaks volumes in itself about your ability I would say. Yes big light loads can be hauled with SRW trucks but SRW trucks are limited by weight capacity period end of story and you can't get around that legally, or otherwise. You didn't pass any DOT stop towing a 30,000# load with a SRW truck rated at 5,000# or even 10,000# for that matter. So what SRW truck has a 30,000# tow rating? And those single tires are rated at what load each? I'm done here!

offshore help my out here... I think (could be wrong) based on the 2012 ram spec sheet, that the SRW max trailer weight it around 18K, and the DRW is at 22,700. A 50ft trailer fully loaded is under 20K??

I'm a tire guy so I can maybe help with some of those questions:
1. Single wheel verse duals on a trailer comes down to one basic concept, dual wheel trailers are more difficult to maneuver. They have a high payload capacity by virtue of the tire weight ratings, so in heavy hauling situations, such as equipment trailers, you see them much more. A 38 TG is not considered a heavy load and easily fits into the weight capacity of 6 trailer tires (app specific) therefore you see a triple axle single wheel set up.
2. Big single tractors and trailers are coming into use as the future of some hauling rigs for a couple of reasons. They actually put MORE rubber on the road verses a conventional DRW, and based on sidewall ply's etc, have similar weight capabilities.
3. A few guys have said that the sidewalls on a DRW pickup tire are stiffer than a SRW. Not true. What creates that feeling is, instead of 2 pairs of sidewalls handling the sway of a vehicle and trailer, you have 4 pairs.
4. Offshore and Habanajoe have mentioned the physics behind a SRW tire pressure on the road vs. a DRW carrying the same weight or towing the same tongue weight. They ARE RIGHT. The weight concentrated on a smaller contact patch creates a higher pressure which creates heat, etc. All that too say, a SRW truck actually does have better traction in some circumstances. But there are more issues at play here...
5. DRW in most 2013 Light duty pickup trucks, have slightly larger rear breaks. They also have higher bed/tongue payload capabilities, and higher towing weight capabilities. The reason being: When both trucks are loaded to their max capabilities, the DRW is capable of more.

So bottom line? DUALLY ALWAYS

Just kidding. Do a little research, and pick the truck for your application and if you are going from a 25ft OL to a 38 TG, you also have to look at your towrig! Gotta pay to play right??

Oh to actually comment on the video DRW pickups are harder to roll. Just trust me on this

That rig needed sway control and equalizer bars.