If the hard sides are setting upsidedown the post at the front. Those posts will fit all the way down into the tub at the back of the side doors. B pillar is the area right behind the side door. On the back side up pillar will be a threaded hole. Should be a bolt in the threaded hole. The. A nut tightened against the B pillar. Nut needs to be loosen and bolt backed out. This allows the post to slip down. Inside the B pillar is a plate with a hole the same size as the post on the hard top side. Once the post slips in that plate the bolt is tightened against the post and the nut tightened against the tub. This help prevent the side from rattling and five the top extra strength in an accident. Here is some hard top sides sitting up side down with posts on top. Running thru your posts from few years back you said you cut these on the 76 top.
How were the shells of the old ambulance doors? Possible to be used with parts off the 80 ambulance doors?
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