Actually, Metuchen used glue in glass (at least on some cars) into the 70 production run, my 70 CJ car (Built Sept. 30'th,1969) had properly dated glue in glass when I bought it. I switched it to bolt in glass in the mid 1980's as the drivers window was actually reglued inproperly already ...
I parted out a lot of 70 Metuchen cars in the late 1980's early 1990's, and it wasn't uncommon for early 70's to have glue in glass. I always checked cause 70 bolt in fastback glass was always an easy sell, even in the 1980's .....