[piecesparts]

That company did the pop out flex glass for a short time, but have not seen that in years. The glass was made of lexan and looked as if it would work well.

For the 68 project truck that I am working on, I took the idea that GM used on the Astro van side windows and cut a dark tinted glass for the back window, had holes drilled in it for the hardware and then had the glass hardened so it would not flex and break. My plans are to make the bottom of the rear glass pop out and open like the Astro vans. I like the fresh air coming in the back of my daily driver with the sliding window, but wanted something a little different for the 68 truck.