Pickup 2500 / 3500 1989-2000 GMC 2WD/4WD - Upper Ball Joint by Kryptonite

KR6344 upper ball joint is a heavy-duty bolt-in upgrade designed for 1988–2000 GMC Pickup 2500 and 3500 trucks, engineered to handle the increased stress of lifted suspensions, oversized tires, towing, and aggressive driving conditions. Built as a direct replacement for factory components, this ball joint delivers significantly improved strength, articulation, and long-term reliability for demanding applications. Designed to bolt into factory upper control arms with grade 8 hardware.

At the core of the design is a heat-treated chromoly ball stud paired with a forged high-strength housing, providing superior resistance to bending and load failure. The metal-on-metal internal construction eliminates the weaknesses found in factory-style designs, while powdered-metal internal races enhance wear resistance and maintain consistent performance over time. A coil-spring preload system maintains constant internal tension throughout the suspension's travel, reducing play and extending service life even under extreme conditions.

This ball joint is fully serviceable, greaseable, pre-filled with high-quality Chevron Ultra EP2 grease, and designed for routine maintenance to ensure optimal performance. A corrosion-resistant black E-coat finish combined with a gold zinc-plated cap protects against the elements, while the included premium Grade 10.9 mounting hardware ensures a secure and reliable installation. Engineered for durability and real-world abuse, this bolt-in upper ball joint is ideal for daily driving, towing, and off-road use, offering a substantial upgrade over both factory and standard aftermarket options.

Features and Benefits:

• KR6344 bolt-in upper ball joint for 1988–2000 GMC Pickup 2500 and 3500
• <strong>Direct bolt-in installation using factory control arms</strong>
• Forged high-strength housing improves durability and articulation
• Heat-treated chromoly ball stud resists bending under heavy loads
• Metal-on-metal internal design eliminates weak factory-style components
• Powdered-metal internal races provide long-lasting wear resistance
• Coil-spring preload system maintains consistent tension and reduces play
• Greaseable design for routine maintenance and extended service life
• Pre-greased with Chevron Ultra EP2 grease for initial installation
• Corrosion-resistant black E-coat housing with gold zinc-plated cap
• Includes premium Grade 10.9 mounting hardware for secure installation
• Designed for lifted, leveled, and heavy-duty applications
• Recommended service interval: light grease every 5,000–7,000 miles
• Covered by the manufacturer's lifetime warranty against defects and failure