Smedley
I have a 3500 dodge SRW and tow a 3400rl. The rear axles in the dodges 3500 are the same between the DRW and SRW in load handling capacity. The limiting factor in the SRW model is the tires. I have the rickson 19.5 with G rated tires. Now the wheels and tires have at least the same capacity as the rear axle (10,000+ lbs). About the same as the capacity of the stock DRW. Also the added plus is the front wheels / tires are also rated at (5,000 lbs) each. With weight transfer during braking (weight shift to the front) the stock dullies tires and wheels in the front are at their limit.