In February 1972, the destroyer began an extensive overhaul. Over the ensuing six months, she received entirely new 5 inch 54-caliber gun mounts; and her propulsion plant underwent conversion to enable it to burn Navy distillate fuel. Extensive other modifications, installations, and renovations also took place between February and August. From August to December, she busied herself with various trials and tests at sea, conducted refresher training, and prepared for her next assignment to the Far East. Her voyage west began on 6 December and ended with her arrival at Subic Bay on the 29th. Two days later, she put to sea for her first tour on the gunline. It also proved to be her last. She delivered gunfire support for 28 days, "delivering over 10,000 rounds of accurate fire in support of ground forces in South Vietnam and against enemy targets in North Vietnam". "USS "Turner Joy" fired the final round of naval gunfire of the war, hitting the beach at 000 GMT, 28 January 1973, scant seconds before the ceasefire went into effect". Then, on 28 January 1973, American participation in the Vietnam War ended with a negotiated ceasefire.