SRW TC size/weight limit

[Tfair1]

I pull a 5th wheel toy hauler around Minnesota and want to buy a TC for cross country travel for just my wife and I. I have had a number of small (8') TC's in the past, but want something a bit larger. What is the "reasonable" size/weight limit for a '15 Duramax 3500 SRW Crew Cab LB? I understand DRW is the preferred way to do this, but how much camper could I expect to haul well,without wishing I had bought smaller...?

I'm guessing this subject has probably been discussed at length in the past.

[Grit_dog]

It has, and as you willl see, the opinions vary greatly.
I would run up around 4500lbs without thinking twice about it in a new 3500 long box.
With whatever mods might be warranted to get you there.