RHoughton welcome to Hazzardnet! What a way to show up with a General Lee. Great find!
I don't believe this was a car used on the show. As the guys pointed out above it has no vinyl top chrome trim and it also has wheel opening trim. The GL's on the show didn't have that. The rear wheels/tires are also wider than what was used on the show. The Charger emblem would have been removed.
The side markers were removed in 1983 when Warner Brothers took over so if this was used on the show it would be from an earlier season.