There is five visible bows,these are in between the head liner panels.

I have six non visible supports that attach to the buttons you speak of.These supports run front to back "bumper to bumper".

I asked what they were on 10/26/2009. question

Here is a picture of four of them . hidden supports

I will take some more pictures of them and post them tonight.

Thanks,Tim

1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
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