Sorry for the delay I had some trouble getting these pictures off my phone.  also truck is muddy as it has gotten even close to freezing and any water would just ice up on truck (had fun getting the windows clean after getting mud on them the other day).

Here is a side, rear, and bottom view

I did the same thing on the inside of the frame on my dads truck. 

FYI, I did this same thing when I swapped in a w-56, just some angle iron on the inside of the framerails, redrilled the holes.
After 5 or so years of hard wheeling, my crossmember is now so bowed that there is a half inch gap at the outside of the framerails. It also started tearing the welds where the angle iron is mounted. The pic above is by far a better way of doing it IMO. The tabs on the outside also would have prevented the bowing mine has recieved.
My rig is offroad only, though, and I wheel fairly hard. A DD/Wheeler probably wouldn't see the same kind of abuse