Does Richard have an son out of wedlock named Rick Petty Graduated high school in 1973?

There is no widely known information or evidence suggesting that Richard Petty has a son named Rick Petty who graduated high school in 1973. Richard Petty, the famous NASCAR driver, has four children, but none are publicly recognized as having the name Rick Petty or fitting that description. Any claims regarding such a person would need to be verified through credible sources.