Purchase Ford F350 Super Duty P/U Differential Output Shaft. Shop Ford F350 Super Duty P/U Front Output Shaft Seal & Ford F350 Super Duty P/U Axle Shaft Seal. Maintaining the integrity of your Ford F350 Super Duty P/U's front output shaft seal is crucial, as it prevents fluid leaks and protects the transfer case. Regular inspection for signs of wear, such as leaking gear oil or grime buildup, is key to determining the need for replacement. To extend its lifespan, ensure proper installation and use high-quality seals; options range from OEM to aftermarket varieties, each offering unique features like enhanced temperature resistance or reinforced materials. When choosing a seal, consider compatibility with your vehicle's specifications to guarantee a perfect fit and optimal performance. Enhance your truck's reliability with our premium selection of front output shaft seals, designed for easy installation and lasting durability.