Delphi TC1625 Suspension Ball Joint - Front Upper

Delphi Suspension Ball Joint TC1625 Overview

The Delphi Suspension Ball Joint TC1625 is engineered for reliable suspension performance on select GM trucks and SUVs. Designed to meet standard suspension grade requirements, this ball joint is compatible with various Cadillac, Chevrolet, and GMC models, ensuring a precise fit and durable operation.

• Constructed with alloy steel SAE 5140 ball material and carbon steel housing for strength
• Maximum outside diameter of 2.079 inches (52.8 mm) and length of 4.55 inches (115.5 mm)
• Includes castle nut, cotter pin, and mounting hardware for secure installation
• Equipped with a chloroprene rubber dust boot to protect against contaminants
• Threaded tapered stud with 12 mm diameter and 0.925 inch thread length
• Press-in mounting type with a wrench size of 19 mm for installation

Technical Details and Specifications

The TC1625 ball joint features a robust design with a ball made from SAE 5140 alloy steel, providing durability under suspension loads. The housing is constructed from carbon steel, offering structural integrity. The ball joint assembly includes a dust boot made of chloroprene rubber (CR), which helps prevent dirt and moisture intrusion, extending the service life of the component. The stud is tapered and threaded, measuring 12 mm in diameter with a taper rate of 0.167 per foot, and includes a cotter pin hole for secure fastening. This assembly is designed for press-in mounting and comes with necessary mounting hardware, castle nut, and cotter pin to facilitate proper installation.

Compatible Vehicles and Applications

This Delphi Suspension Ball Joint TC1625 is compatible with a range of GM vehicles, including:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Suburban 1500, Tahoe
• GMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500
• Chevrolet Express 1500, Express 2500, Savana 1500, Savana 2500

Common Suspension Issues Addressed

• Eliminates excessive play or looseness in the suspension linkage
• Reduces uneven tire wear caused by worn ball joints
• Improves steering response and vehicle handling stability
• Prevents clunking noises during acceleration or braking
• Maintains proper alignment and suspension geometry

Installation Notes and Tips

Installation of the Delphi TC1625 ball joint requires pressing the unit into the control arm using appropriate tools. The included castle nut and cotter pin ensure secure fastening of the tapered stud. It is important to verify the correct torque specifications and confirm the cotter pin is properly installed to prevent loosening. The dust boot should be inspected for damage during installation to maintain protection against contaminants. This ball joint is not adjustable and is designed for direct replacement on compatible GM models.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The TC1625 ball joint undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Delphi typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or Delphi for exact warranty terms.