Here is the ratings of my reg-cab dually pickup truck:
- front axle: 3690 lbs
- rear axle: 7400 lbs
- GVW: 10000 lbs

Factory dually wheels are rated at 2500 lbs each, good 235/85-16 tires are rated at right around 3k single and 2700 lbs dual. For a SRW truck to have a rating of 10k then it will need rear wheels and tires that can handle 3700 lbs each, now I dunno what factory single wheels are rated for but even the LT265/75-16 highway tires I got on my front axle are rated at 3400 lbs which is below what's needed for this application.

So really as long as your truck is a SRW you will be below the 10k limit, regardless of how strong the frame and axles are the wheels and tires will be your limiting factor.