Thanks to all for the replies and info.
Got the window partly installed yesterday. The wall is slightly thicker than the window frame as it turns out, so I'm trying to deal with that now. Not sure if I want to put spacers on the window frame behind the screws, or remove a little of the wall wood on the interior around the window frame to allow the second part of the window frame to screw on. Pondering that now. Suggestions welcome.
Gary:
The door frame is metal and it has screw holes on the exterior edge / flange / lip of the door frame. The window is not rubber pop-in. It's an aluminum frame as well, but it came apart into two pieces that somebody else called a sandwich. BradKW provided the right term -- split jamb.
Jim:
Thanks, especially nice coming from someone who's seen ithe truck up close.
Matlock:
Aluminum door, yes. The only thing that I can see that is pre-drilled is the outside edge of the door which will lay flat against the outside of the truck. See photos.
Regarding measurements, suffice it to say for the moment that I've measured the door and the truck and ithe door seems to be barely small enough to fit in my available space. There may still be some sort of MacGyver modification necessary. I'll share measurements when I get to that point, if I remember during the flurry of activity. What did you have in mind regarding measurements?
Also, thanks for the useful information about framing and butyl tape. I've never used that tape before.
Brad:
Split jamb - window, yes. Door, no.
Square - yes, frame and door relative to each other only.
Pre-hung: yes.
Shims: Thanks for the tip. Would not have occurred to me.
MP:
Thanks for the tip about the size of the opening. Can't say I'm sticking to that in every place simply because I chose to use a Sawzall at one point and those things are not very accurate, and probably worse in my hands.
What I'm more concerned about at this point is whether I need to retroactively ensure that there is wood all the way around the opening. In other words, do I need to go back and make sure that I insert an extra stud vertically up and down both sides of the door where there may not be a stud now? If I don't, and I'm screwing through the side of the door/window frame into the wall, I don't know what I would be screwing into at this point. As luck would have it, foam in some cases, which clearly will not do.
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I've learned a few lessons so far:
* The Sawzall, while a handy, awesome, devastating tool, is nearly impossible to use to cut a straight line. That is especially true when using longer blades and when cutting through anything thick like a wall. In this case, the blade of course wanted to flex and it was almost cutting a beveled angle so that the outside opening for the window would end up larger than the inside opening from which I was cutting. Luckily I caught it in time and corrected it.
* Related to the problem above, instead of using the Sawzall mostly, use a circular saw to cut every straight line possible, stopping before the corners. Use the Sawzall or a jigsaw with a really long blade to cut the corners, if rounded. Doing this one thing saved me a lot of time, made my life much easier, and resulted in a much better cut-out in the wall.
* When picking up parts like this door and window from the used market, don't expect everything to fit exactly right, and budget extra time and probably a little money for workarounds to make them fit.
Photos below.
Tom
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Cut out done and window partly installed
Ugly gap around the window, and the window inside the wall farther than I want it to be.
Side of door frame showing bolt / screw / rivet thingies, but no split jamb as far as I can tell. If those are bolts or screws, they don't seem to come off.
View near the top of the frame to give you a better idea what the frame itself looks like in profile.
View of latch side of the frame. Are those little pieces of plywood supposed to remain there as permanent parts?
Tom