Originally Posted by MSD
Wow. I've never installed from the inside. Always the outside. But I guess I see the logic.
No offense taken here, but I can explain my logic.
My constraints all existed inside the van. I wanted to be above my future kitchen and within the framework that allows for a window without cutting away critical support pieces. Not to mention the support structure with 2 parallel lines that I could measure from as a solid datum line. The lines on the outside of the van aren't even lines much less parallel. I then drilled 4 holes exactly 1 inch inside my template. I drilled them inside just in case I needed to angle it one way or another. With a dry erase marker I connected the hole on the outside to reveal what the lines would look like from the outside. And they flowed perfectly with the profile of the van.
I have driven over 10000 miles, including the Alcan, with this window and it rock solid. The only problem I had was with the window itself. There was a small leak within the double panes of glass unknown to me. No water gets in the van but there is occasional moisture build up between 2 of the panes. I took a risk with the $20 junkyard find and it sorta paid off. A new window would have been ideal.