Delphi TC5401 Suspension Ball Joint - Front Lower

Delphi Suspension Ball Joint TC5401 Overview

The Delphi Suspension Ball Joint TC5401 is engineered for reliable performance in select Buick, Cadillac, and Oldsmobile vehicles. Designed with durable steel construction and a protective chloroprene rubber dust boot, this ball joint supports smooth suspension movement and long-lasting wear.

• Constructed from high-strength steel for durability
• Maximum outside diameter of 2.126 inches (54.0 mm)
• Length and width both measure 54.0 mm for precise fitment
• Includes castle nut, cotter pin, washers, and mounting hardware
• Equipped with a chloroprene rubber dust boot to protect against contaminants
• Pressed mounting type with tapered stud ends for secure installation
• Compatible with Buick Allante, Cadillac DeVille, Eldorado, Seville, and Oldsmobile Aurora, Reatta, Riviera, Toronado models

Technical Details and Specifications

The TC5401 suspension ball joint features a pressed mounting type and a tapered stud design with stud thread diameters of 0.563 inches and tapered end diameters of 0.606 and 0.72 inches. The stud thread length measures 0.807 inches, ensuring a secure connection. The ball joint assembly includes a dust boot made from chloroprene rubber (CR), which resists wear and environmental damage. This assembly also comes with essential mounting hardware such as nuts, washers, a castle nut, and a cotter pin with a hole for added safety and stability.

Compatible Vehicles and Applications

This Delphi ball joint TC5401 is compatible with a range of Buick, Cadillac, and Oldsmobile models, including:

• Buick Allante
• Cadillac DeVille, Eldorado, Seville
• Oldsmobile Aurora, Reatta, Riviera, Toronado

It is designed to replace worn or damaged suspension ball joints in these vehicles, restoring proper steering and suspension function.

Common Issues Addressed by the TC5401 Ball Joint

• Excessive play or looseness in the suspension system
• Uneven tire wear caused by faulty ball joints
• Clunking or knocking noises during steering or over bumps
• Reduced steering responsiveness or alignment problems
• Dust boot damage leading to premature joint wear

Installation Notes and Tips

Installation of the Delphi TC5401 ball joint requires pressing the unit into the control arm or suspension component. Ensure all included mounting hardware such as the castle nut, cotter pin, and washers are used to secure the assembly properly. The tapered stud ends must be aligned correctly to prevent premature wear. It is recommended to inspect the dust boot for damage during installation and replace if necessary to maintain joint protection.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM specifications. The TC5401 ball joint undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in the product's reliability.