Perfect candidate for a swap!
As for 4 wheel disc, There were 33,819 '79 WS6 cars and 34,203 J65 4 wheel disc cars. So figuring all WS6 were 4 wheel disc then there were 384 cars built with 4 wheel disc that were not WS6 equipped. I've never seen one myself, but apparently they're out there.
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'79 SE T/A 400/4spd
'12 ZL1 Camaro
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