Reply to "Rear Window"

There is an extensive product offering for plastics. I am very sure there is an "alloy" that is used for "firewalls".

You will probably need to display a sticker that indicates it is heat and fire retardant/resistant and the spec # on it.

I don't have that listing to offer you a link to it.

A race car fabrication shop most likely will have some right there ready to cut for you.

I would not expect it to be an economy item though.

It really is space age stuff.

The original glass window if it is acceptable to the race sanctioning bodies would be my first choice.

If you like to fabricate, just make a bolt on frame for the glass.

A lot of the glass can be drilled to pass bolts through if the roll cage is the issue here. Not sure if the Pantera glass is drill-able without destroying it though.

The aging of the glass is a factor on it also for that.

You probably would just be looking at a nice thick piece of some kind of a "rubber" pad between the glass and the steel plates?

If you are not coming in the cabin with the any part of the cage, why not just put the bar in the engine compartment built so it kicks down, and bolt it to the roof there?