Some Peugeots from around the period of yours are Swiss threaded in the bottom bracket. If this is the case, a decent shop can tap the Bottom bracket threads out to English. If it's Swiss and the cups are okay, you can always keep them; although you might have spindle problems if you Switch to Japanese components. However, it is quite possible your bike is English in the BB; I doubt it's French, as Peugeot switched their BB threading to Swiss right about 1980, and your bike is certainly later. I'm unsure when the switchover to English threading was.
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