The 11 Gauge Stainless Steel Tool Box is a practical and durable storage solution for your 389 Peterbilt truck. Made from high-quality stainless steel, this complete box offers exceptional strength and longevity. Before ordering, make sure to check the year and style of your truck to ensure a perfect fit. With its sleek design and reliable construction, this tool box is a must-have for any 389 Peterbilt owner looking for a convenient and secure storage option.