If you find that you really need (or want) the DRW truck, look at a chassis cab truck. They have a narrower rear frame and a narrower rear wheel track. Of course then have to get on of those neat looking hauler bodies to put on the back. Still going to be wide, just not as much.
I like the DRW truck but it can be a pain. There are places that you just don't go, but we have learned to make it work. And when you have to swerve to miss some fool who just had to have your lane, well she was a convert. BTW she was the one driving that day. But many of the new SRW trucks have the same GVWR as our 05 DRW truck.