Shop Buick Regal Upper And Lower Ball Joint Kit. Purchase Buick Regal Upper Ball Joints Replacement Cost & Buick Regal Ball Joints Replacement Cost. Maintaining the upper ball joints of your Buick Regal is crucial for smooth steering and suspension performance. Regular lubrication and inspection for wear or tear can extend their lifespan. When experiencing uneven tire wear, clunking noises, or erratic steering, it's time to consider high-quality replacements. Choose from durable steel or performance-oriented alloy ball joints, ensuring compatibility with your Regal's model year for optimal function. For seamless installation, opt for ball joints that come with a complete hardware kit, and trust in parts with a warranty for added assurance, elevating your online shopping experience and driving confidence.