KD4UPL wrote:
Your GRAW is likely limited by the stock tires. Upgrading tires, possible to a 19.5" rim and tire would help.
However, yes, you're asking a lot of the truck. Diesel engines are heavy, 4 x 4 is heavy, campers are heavy. I have a dually and with my TC and boat I'm over my GVWR by more than 2,000 pounds.
Exactly. The RAWR is tire/wheel based so an upgrade to those will allow you to keep a SRW.
A DRW will handle the weight better, but that's not always an option. If DRW isn't an option then modify a SRW.
I personally needed a SRW with about 7500# of RAWR, so I modified my 3500 SRW. I have a hellwig anti-sway bar, airbags, Bilstien Shocks, and 19.5" wheels tires rated at 4500/ea. It handles the weight great, of which 1200lbs is tongue weight and over 1100lbs is above the bed rails and 8' wide. I challenge any stock DRW to handle it as well, a modified DRW will win but a DRW should need modifications.
Just like on my Dodge the F-350 uses the same frame for SRW/DRW and the same brakes. There are probably slight suspension differences that airbags can fix. The Sterling 10.5" axle has all the capacity you need, even if you maxed out a pair of 19.5's.