Delphi TC6320 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Delphi TC6320 Front Left Lower Control Arm

Delphi TC6320 is a standard replacement suspension control arm and ball joint assembly for the front left lower position. It is built with an aluminum control arm, pre-greased components, and a press-in ball joint to support OE-style service on select Ford F-150 and Lincoln Mark LT applications.

Key Features

• Front left lower suspension control arm and ball joint assembly
• Fits 2004-2008 Ford F-150, front left lower, with 7 stud rotor
• Fits 2006-2008 Lincoln Mark LT, front left lower, with 7 stud rotor
• Aluminum control arm construction with casting/forged design
• Pre-greased and greaseable with grease fitting included
• Press-in ball joint with threaded stud
• Bushings included with natural rubber bushing material
• Mounting hardware included
• Standard replacement grade

Detailed Description

Delphi TC6320 is engineered for front left lower suspension service where precise fit and durable materials matter. The assembly uses an aluminum control arm with a press-in ball joint, threaded stud, and included bushings to match the original suspension layout on the listed Ford F-150 and Lincoln Mark LT vehicles. Delphi applies OE-focused dimensional and material analysis to help maintain compatibility between the replacement part and the original application, and the part is tested across extreme temperature and corrosion conditions for durability in demanding environments. This part cross-references MOOG Chassis Products RK80403 for the same application.

Common Repair Uses

• Replacing a worn or noisy front left lower control arm
• Addressing looseness or play in the front suspension
• Correcting clunking from worn ball joint or bushings
• Restoring steering response and suspension geometry after wear
• Servicing a Ford F-150 or Lincoln Mark LT with a damaged lower arm assembly

Installation Notes and Tips

Install TC6320 only on the confirmed front left lower position for the listed vehicles. Verify the vehicle uses a 7 stud rotor before ordering, and inspect adjacent suspension components, fasteners, and alignment settings during replacement. Because the assembly is greaseable and includes a grease fitting, service the joint after installation according to the vehicle maintenance schedule. A professional alignment is recommended after control arm replacement.

Quality Assurance

Delphi backs this suspension control arm and ball joint assembly with OE-based engineering practices, including dimensional and material validation for fit consistency. The part is exposed to extreme temperature and salt-spray testing to evaluate durability and corrosion resistance in real-world service conditions.