The Trekker window is around 44x15.5. The window on my Leer canopy is 52x15.5. The windows they used on the 01-04 Double Cap canopys look to be about 48" long. I noticed the curve too, might explain the black silicone from a previous owner..it is not an immediate project, seeing what you did just got me to thinking...
Just got to work, but will check out the Trekker board when I get on break.Cool

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