56 chevy cab onto a second gen v3500 dually, have you done it?

[camiswelding]

I have a nice dually v3500 I might consider using for the swap.... cab only.. bed is going to be custom...
I would be very interested as to what problems you encountered and how you solved them..
I also understand that all the cabs are the same but the fenders are wider on the heavier series (2 ton)... anyone know if this is true...
lots of street rods out there but not alot of 4 x 4s that Ive seen nicely done... and lastly anyone know of a good forum to start looking at for these vintages
thanks
cam