Replace your damaged or missing door lock knobs with this nostalgic Black 1964 1/2 Mustang Door Lock Knob from Scott Drake. Only early production Mustangs in 1964 were equipped with black door lock knobs. The knob is sold individually, and 2 are required per car. We also recommend replacing the Door Lock Grommets (P/N: C2OZ-6221999-BK) at the same time.