I've traded email with Andereggen and made an initial arrangement to meet him when I travel though the area where he lives in a few weeks.
I have an approach in mind to assure I get it all right, but I didn't start this thread to explain how I'm thinking I'll approach this but to learn how others have done it successfully.
Here is my thought. I have the entire frame from the '72 3/4-ton but I'll only use the front poration back as far as the shock mounts, which are just behind the IFS. Rather than make spacers to mount parts to the '55 1st frame, I'm thinking I'll trim the top edges of the '72 frame to allow the '55 1st to drop inside it. Then I'll create spacers to hold the two frames in correct relationship, and trim away excess from the '72 frame.
The advantage is that I keep both the body mounting points from the '55 1st frame and also maintain the original relationship of all suspension and steering parts, because they will still be mounted to the '72 frame.
Downside is I'm adding a bit of additional weight and it won't look pretty.
I think the two keys to making this approach work is correct horizontal alignment on both axis and correct location of the axle centerline.
That is what I'm thinking, but if someone has done it another way that proved successful I'd sure like to know what they did...
