Well, to be precise, it's "window" as I have only done one so far. It took quite a bit of prototyping with fiberboard fully assembled with all of the hardware and seals, and then two tries with the polycarbonate to get what I wanted. The first one looked great, put pulled out a bit at highway speed, so I had to make the window a bit taller.
Anyway, pictures are attached. This is based n Joe Soltis' recipe, with a few changes:
1. I used 3/16" polycarbonate in stead of 1/8".
2. After the first prototype drive, it was obvious that I needed some stiffening, so I added the U-channel aluminum (polished with a buffing wheel and waxed) that you see in the pictures.
3. I added the small [piece of polycarbonate at the rear to make the window seal up better, and to hold the corner of the top in place. On the Beck, that part is only held down by velcro, and I've had it blow open at speed.
4. I added the small but of flat rubber at the front (storm door weatherstripping) to cover the notch I had to put in the main seal due to the Tenax fastener for the tonneau cover.
5. I used the posts off my original side windows. All of the fasteners are stainless steel to prevent rust.
So far it seems to work well. I may have a little fine tuning at the front seal. I'll do the other one tomorrow - maybe. My top is slightly asymmetrical, so the passenger side window is a little longer. That'll mean some more fine tuning of the shape.
Oops - forgot to put the pictures in my folder. I'll be right back. Don't go away.
Ok, I'm back with the pics.
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