Delphi TC6340 Suspension Control Arm and Ball Joint Assembly - Front Left or Front Left Lower

Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC6340 suspension control arm and ball joint assembly is designed specifically for front left lower suspension applications on Buick DTS and Cadillac Lucerne models. Engineered with durable aluminum construction and pre-greased components, this assembly provides reliable performance and precise fitment for your vehicle's suspension system.

• Pre-greased for immediate installation
• Includes natural rubber bushings for vibration dampening
• Machined ball joint mounting with threaded stud for secure attachment
• Durable aluminum control arm with casting and forging construction
• Mounting hardware included for straightforward replacement
• Designed for front left lower suspension position on Buick DTS and Cadillac Lucerne

Technical Details and Construction

The Delphi TC6340 control arm assembly features a robust aluminum control arm constructed through a combination of casting and forging processes, ensuring strength and resistance to wear. The natural rubber bushings included help absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint is machined for precise mounting and includes a threaded stud measuring 3.5 inches (89 mm) in length, providing a secure and stable connection to the suspension system. This assembly is pre-greased, eliminating the need for additional lubrication during installation.

Compatible Vehicles and Fitment

This suspension control arm and ball joint assembly is compatible with the front left lower position on Buick DTS and Cadillac Lucerne models. The part number TC6340 ensures exact fitment and replacement for these specific vehicles, maintaining factory suspension geometry and handling characteristics.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Suspension noise or vibrations from deteriorated components
• Alignment problems due to bent or weakened control arms
• Reduced handling performance and vehicle control

Installation Notes and Tips

When installing the Delphi TC6340 control arm assembly, ensure the vehicle is securely lifted and supported. Since the assembly comes pre-greased and includes bushings and mounting hardware, installation can proceed without additional lubrication or parts. Verify torque specifications for all mounting bolts and ball joint stud to maintain proper suspension alignment and safety. It is recommended to perform a wheel alignment after installation to ensure optimal handling.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, providing dependable performance for Buick DTS and Cadillac Lucerne vehicles. The TC6340 assembly is manufactured to strict quality standards, ensuring durability and fitment accuracy. Warranty coverage details should be confirmed with the point of purchase or Delphi directly.