Is there a clearance issue between the body and the upper shock mount when using longer bolts? I seem to remember that, but it has been too long. My body is now off the frame and I am thinking of making something permanent to avoid future clearance issues -- if it would be helpful.
A one inch bolt should be long enough and you should be able to drop it in the hole between the frame and body. Do you need a longer bolt than that? You could relieve the body a little at that point (I know.. ).
You can drop the bolt in from the top before you set the body and it will be in place as Bill said or install it from the bottom later with nut and washer on top. I prefer dropped in from the top.
I know the bolt drops in from the top -- at least it did on my 1972 wagon and I would expect they are all the same. I also know that over time the upper spring perch/shock mount migrates toward the body. It would be too long a story to tell you how I know.
Right now my body and frame are separated by several miles, so installing the upper shock bolts is no issue. I am just thinking ahead. Stainless steel and some way to fasten the bolts to the mount so I don't ever have to try to get a wrench between the mount and body is what I was thinking about.
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