I do know for a fact that when Chrysler thought they were going under in the late 70's they housed thousands of parts in the old Studebaker warehouses near South Bend, IN and they hired dozens of contractors to destroy those parts. I had a freind who worked there and he was disgusted that they were smashing NOS quarter panels, guages, and the like and he ended up taking some home. He was found out and fired, but what he saw made him sick.
They probably threw out all the records then too.