5.9 Cummins Diesel Towing capacity

billy1davis wrote:
We are looking very seriously at a 5vr that total GVWR is 15,000 pounds.
My dodge dually is 2001 dually. JUst had the tranny completely rebuilt and it has been chipped. Not sure about being able to pull such a load over a mountain pass. Please advise asap???
Thanks so much

You might consider the *Tow Vehicles* forum (here).
Of course, many "brand loyal" posters there.

Soooooo.....

Next - go to the many forums for diesel pickups - for/of the specific brand/s you are interested in. (forum names via Google)

Check the "help" (etc) sections to see what kind/s of problems *owners* are encountering (if any).

Roll on!

.