Delphi TC1661 Suspension Ball Joint - Front Lower

Front Lower Ball Joint for Ford F-150

Delphi TC1661 is a front lower suspension ball joint built for 1987-1996 Ford F-150 applications. It combines OE-focused dimensional control with durable materials, greaseable serviceability, and included mounting components for a direct replacement on the front suspension.

Key Features

• Fits 1987-1996 Ford F-150, front lower
• Standard replacement suspension ball joint assembly
• Press-in mounting type with threaded, tapered stud
• Ball material: Alloy Steel SAE 5140; housing material: Carbon Steel SAE 1040
• Grease fitting, dust boot, castle nut, cotter pin, nuts, washers, and mounting hardware included
• Greaseable design with chloroprene rubber dust boot
• Non-adjustable, standard suspension grade type
• Delphi part number TC1661

Detailed Description

Delphi TC1661 is engineered as a standard replacement front lower ball joint for the Ford F-150. Delphi applies OE dimensional and material analysis to support proper fitment between the original part and the aftermarket replacement, while the component is tested across extreme temperature and corrosion conditions to verify durability in demanding suspension service. The press-in design, tapered threaded stud, and included dust boot support secure installation in the front lower suspension position. Delphi TC1661 also cross-references MOOG Chassis Products K8431T for the same application.

Common Repair Symptoms

• Front-end clunking or popping over bumps
• Excessive play in the lower suspension joint
• Uneven tire wear caused by worn steering and suspension geometry
• Loose or unstable front suspension feel on Ford F-150 trucks
• Torn dust boot or loss of grease retention at the joint

Installation Notes and Tips

Verify the front lower position before ordering and confirm press-in fitment on the vehicle. Inspect the control arm bore, stud taper, and surrounding hardware for wear or damage before installation. Because this is a greaseable ball joint, service it according to the vehicle’s maintenance schedule after installation. Fits 1987-1996 Ford F-150, front lower.

Quality Assurance

Delphi uses OE-based engineering and material analysis for aftermarket steering and suspension parts. This ball joint is tested for temperature extremes below -40 degrees C and above 120 degrees C, and it is exposed to 720 hours of salt spray to evaluate corrosion resistance and long-term durability.