Dorman 533-177 Suspension Ball Joint - Front Upper

Dorman 533-177 Suspension Ball Joint

Dorman 533-177 is a threaded suspension ball joint built as a standard replacement for specific front upper applications. It is precision-engineered and tested for reliable OE-style service on 1971-1972 Chevrolet Blazer, 1971-1972 Chevrolet C10 Suburban, 1971-1972 GMC G15/G1500 Van with disc brakes, and 1971-1972 GMC Jimmy.

Key Features

• Threaded, bolt-in suspension ball joint for front upper use
• Steel construction with a rubber dust boot
• Greaseable design with grease fitting included
• Castle nut, cotter pin hole, and mounting hardware included
• Tapered stud with 12 mm wrench size
• Standard replacement suspension grade

Detailed Description

This Dorman suspension ball joint, part number 533-177, is designed for direct replacement in select classic GM truck and van front suspension applications. It uses a steel body, threaded mounting type, and tapered stud design to match the original service layout on the listed vehicles. The rubber dust boot helps protect the joint from road debris, while the greaseable construction supports routine lubrication during service. This part cross-references MOOG Chassis Products K6124 for the same application.

Compatible With 1971-1972 Chevrolet Blazer, front upper; 1971-1972 Chevrolet C10 Suburban, front upper; 1971-1972 GMC G15/G1500 Van, front upper with disc brakes; and 1971-1972 GMC Jimmy, front upper. The Dorman 533-177 is a practical OE-style replacement when restoring steering and suspension geometry on these vehicles.

Common Repair Uses

• Front-end looseness or play at the upper control arm
• Clunking or popping noises from the suspension
• Uneven tire wear related to worn ball joint movement
• Steering wander caused by excess joint wear
• Restoration of original suspension articulation on classic GM applications

Installation Notes and Tips

Verify the vehicle’s front upper suspension configuration before installation, especially on 1971-1972 GMC G15/G1500 Van models with disc brakes. Inspect the control arm, mounting points, and surrounding hardware for wear or damage before pressing or threading the new joint into place. After installation, grease the joint according to service requirements and confirm proper torque on the castle nut and mounting fasteners.

Quality Assurance

Dorman manufactures this ball joint as a tested replacement part for specific OE applications. Part number 533-177 is built to meet the needs of repair and restoration work on the listed Chevrolet and GMC vehicles.