Some will argue that a Dana 70 is stronger, but I have only seen closed knuckle variety 70s used in Dodge trucks (no open knuckles). Closed knuckles are not as strong as open, and the stub shafts are not as strong as the open 60s. Stick a 60 in there, its a simple task, unlike trying to adapt some huge-a$$ Dana 70, or Rockwell 2 1/2 ton into your truck. Some break 60s, but usually at the stub shafts, which can be upgraded to 35 spline from Dynatrack, and if you start blowing hubs, use the drive plates like Titanic on his Sub, you know the ones in your previous post about the pre'80 Dana 60s with full time hubs. Those things will not break!!!
ken