A friend of mine worked for Warner Bros on Dukes. He was in the transportation shop and built/rebuilt/repaired/junked many General Lees.
As that was in the days before repro parts for Mopar B-Bodies, the Warner Bros shop guys like my friend regularly raided the local junk yards and pick-your-part lots. By the end of the show, there were virtually no B-Bodies in parts yards in the greater Los Angeles area with suspension parts and front clips still on them.