Upper Ball Joint 76-80 Pontiac Sunbird

The PROFORGED Upper Ball Joint 76-80 Pontiac Sunbird (Part Number 101-10300) is a greasable, bolt-in front suspension component engineered for GM H-Body vehicles spanning 1971 to 1980 model years. This is direct OEM-equivalent replacement hardware designed to restore worn suspension geometry and steering response on classic Pontiac, Chevrolet, Oldsmobile, and Buick platforms that rely on this joint for front-end articulation and stability.

Ball joints are critical load-bearing pivot points in the suspension system. This upper unit carries the weight of the vehicle at the front corner and permits vertical suspension travel while maintaining steering control. The greasable design allows for periodic maintenance lubrication, extending service life and maintaining smooth operation. Installation is straightforward bolt-in fitment; hardware is included. At 1.16 lbs, this is a precision component with tight dimensional tolerances (3.8 x 3.75 x 4.45 inches), requiring proper installation procedure to ensure correct wheel alignment and suspension geometry after replacement.

This replacement is essential for restorers and vintage vehicle owners who maintain H-Body platforms. Worn ball joints cause steering play, uneven tire wear, and suspension noise—symptoms commonly encountered in older vehicles. PROFORGED is recognized for manufacturing suspension components to OEM specifications, making this upper ball joint suitable for vehicles returning to original handling characteristics or undergoing full front-end restoration. Purchase as a single unit or as part of a complete upper and lower ball joint replacement set.

Compatibility spans the full H-Body platform: 1976–1980 Pontiac Sunbird, plus equivalent model years across Chevrolet Monza, Oldsmobile Starfire, and Buick Skyhawk. Always verify year and body style before ordering, and refer to factory service literature for torque specifications and installation procedures.