OK. Moving right along. The next thing was to construct a mounting point for the undercarriage mounting bolts.
After the under-area was clear, we started on the fabrication of a "box" to provide a mounting surface. The first step was to make a base plate support. For this we simply welded in 90o bars on the front and outboard sides. Here is a pic:
Next, we cut plates to be welded onto the top of the support edges. Here is John cutting plate.
Here are the plates attached to the support.
Then the rear sides were cut and welded in. This pic is from the rear of the plate looking in.
This pic is the same, but as seen from the median to outboard showing the last area to be "boxed" in.
We now took the new suspension posts and cut them down somewhat and cleaned off the edges to fit within the box space ready for welding.
We pulled the rear suspension into position with the bolts stuck through. We generally established the position using four simultaneous plumb bobs (one on each corner) to get things
equally centered. We then marked the bolt post outline on the box bottom with a felt marker. (You can see the marks around the hole in the pic.
We then let the undercarriage down and circle drilled holes to accept a raised ring around the bottom of the bolt posts. (Make this hole a little larger to permit final position placement.)
Then we lightly bolted the posts to the under carriage suspension and worked it into place and made tacs. We unbolted the under carriage, took it down, and welded the bolt posts onto the suspension box.
Finally got the inboard box sides covered. Then took some more plate, heated it , and hammered it to form a curved length to cover edges of the outboard framing.
here is another shot, but you need to turn it 90o.
Now the hard part is done!