Howdy all. I have two vintage bubble windows I’ll be installing over the course of the summer, a heart and a teardrop. Despite this being a very common aftermarket modification back in the day, I can find very little information online for how to do it properly.
On the surface it looks straightforward; cut hole, install window, seal with butyl tape.
Clamping the trim ring down tight sounds like a recipe for warping the side panels. To avoid that, I plan to make up shims or spacers to bridge the curvature on the inside with the inner trim ring. For the outside, instead of butyl I’m considering windshield urethane to fill the gaps.
Most importantly, I’ll take a pile of photos to make up some kind of instructional walk-through for other amateurs like myself.
So before I start cutting holes, does anyone have any tips? Installation suggestions? Other considerations? Thanks!