Purchase Pontiac Grand Prix Drive Shaft U Joint. Replace Pontiac Grand Prix U Joint Replacement & Pontiac Grand Prix U Joints. Maintaining the U-joints in your Pontiac Grand Prix is crucial for a smooth and quiet ride, and recognizing the signs of wear, such as clunking noises or vibrations, is key to timely replacements. Extend the lifespan of your U-joints with regular lubrication and by avoiding excessive loads. When selecting new U-joints, choose from greasable or sealed options, with the former offering ease of maintenance and the latter boasting a longer service life without upkeep. Always opt for high-quality materials to ensure durability, and follow the manufacturer's guidelines to ensure proper installation. Shop with us for reliable U-joint replacements that meet your Grand Prix's specifications and elevate your vehicle's performance.