Most people have heard of SID Syndrome - Sudden Infant Death Syndrome. Some have heard of SBGD syndrome, but probably not by that name, Sudden Back Glass Death Syndrome....

I just happened to be looking at the back window of the truck when suddenly, with a pop, it developed a million cracks all in a split second...

Does anybody know - if I get a used back glass, is it anything more than a crap shoot knowing whether it might do the same thing? That is, are old, reinstalled windows more likely to do it?

my car has tempered glass on the sides and laminated on the front and rear windshields.

Does this also happen with camera lens.

There are two kinds of safety glass used in cars. Laminated glass is two sheets of glass with a layer of soft plastic in between. It is marked "AS-1" and is used in windshields. Tempered glass is one single layer of glass that has been specially heat treated such that it contains specific kinds of internal stresses. This is done so that if it breaks, it breaks into relatively safe granules rather than jagged, dangerous shards. It is used in side and rear glass and is marked "AS-2". Occasionally, the internal stresses of a piece of tempered glass will combine with other factors (ambient temperature, for instance) and the glass will spontaneously break as you describe. The exact manner and speed with which the glass is tempered can make this kind of failure more likely. Chrysler had a problem with this on certain of their North American-market minivan backglasses, 1991-1995. But outside of that, it will happen from time to time on a random basis (or perhaps Doc is right and your secret superpower is the ability to break glass with nothing more than your gaze), there's no relationship between age and likelihood of spontaneous breakage. What will increase this likelihood is any kind of localised stress on the glass. If any part of the body "fence" or gasket is unduly pinching, squeezing or bearing against the glass, the odds of spontaneous breakage go way up, so it pays to pay very careful attention during the R&R.

Interchange on that glass is indeed '63-'65 Valiant (only) sedan and hardtop.

Don't be looking at my car's glass!

I may have a used BW, any know the years, I think it's all 63-65 Valiants, Hardtops & Sedans.
DD

also it might be have been stressed by some under weatherstripping rust, maybe. One thing I always do before installing my glasses (i do it myself, since stupid kids at automotive glass shops down here doesn't know how to deal with real weatherstripping instead of jap cars glued on glasses, and they end up damaging the rubber or breaking the winshield or leaving it leaking like my nose right now...) is drop the glass in the lip w/o the rubber and check for evenness of spacing or potentially stress points like a corner or curve that doesn't follow the body shape or stuff like that.

my first installation sucked on the front winshield! we can team up I broke the piece of weatherstripping 3 times. when I finally got to install it right, leaked like niagara falls.