Bubba,

While my truck is a little smaller than yours (1959 1 Ton 3800), I'm doing exactly what you have planned. A Dana 60 from a 1987 K-30 truck bolted right in to mine, rear is a Dana 70 from a 1992 P-30 Cube Van. If you go to my albums on Webshots (http://community.webshots.com/user/Lane9999) and check under the 'Frame Work' category, there are a few pictures there that may help you out.

If you have any questions, please feel free to contact me. I'd be glad to help out in any way if I can.

Lane