The next set of pictures taken below were between December 18-20, 1978.
On site locations from episode 5 titled:  High Octane. 
Pictures read both these dates from negatives.
Morning of December 20, 1978 preparing for High Octane jump. Paul Baxley, Charlene Webb, and Bob Seager on the back of a camera truck pulling one of the 3, 1968 Chargers that was converted to a 1969 Charger General Lee.
Take 2 of Jesse Duke in front of the courthouse.
Don McDougall setting up sound stage
awaiting General Lee to pull into town square.
Background and lighting shots with
Luke driving and Bo as passenger.