Delphi TC5390 Suspension Ball Joint - Front Lower

Front Lower Ball Joint for Ford and Lincoln

Delphi TC5390 is a front lower suspension ball joint built for OE-style replacement on select Ford and Lincoln trucks and SUVs. It is engineered for the front lower position on the Ford F-150, Ford Expedition, and Lincoln Mark LT, with fitment covering 2003-2008 applications.

• Front lower suspension ball joint assembly
• Steel construction with gray finish
• Dust boot included with chloroprene rubber material
• Castle nut, cotter pin, nuts, washers, and mounting hardware included
• Tapered stud design for OE-style suspension connection
• Standard replacement grade
• Compatible with Ford F-150, Ford Expedition, and Lincoln Mark LT front lower applications

OE-Style Replacement Details

Delphi TC5390 is built using dimensional and material analysis to match OE fit and function as closely as possible for the front lower suspension location. Delphi subjects its steering and suspension parts to extreme temperature exposure below -40 degrees C and above 120 degrees C, along with 720 hours of salt spray testing, to evaluate durability in demanding conditions. This part cross-references MOOG Chassis Products K80149 for the same application.

Common Problems This Part Can Address

• Excessive front-end looseness or play
• Clunking or knocking from the lower suspension area
• Uneven tire wear caused by worn ball joint movement
• Steering wander or reduced directional stability
• Inspection failure from worn front lower suspension components

Installation Notes

Fits 2005-2008 Ford F-150, front lower; 2006-2008 Lincoln Mark LT, front lower; 2003-2006 Ford Expedition, front lower; and 2004 Ford F-150, front lower with the 11th digit of the VIN K, N, or F. Verify the mounting points, stud taper, and vehicle configuration before installation. Use the included cotter pin and hardware as specified by the service procedure, and follow factory torque specifications during assembly.

Quality Assurance

Delphi applies OE-focused engineering and validation to its aftermarket steering portfolio, with testing that includes temperature cycling and salt-spray exposure to help confirm material durability and fit consistency. Part number TC5390 is built as a standard replacement suspension ball joint for the listed Ford and Lincoln front lower applications.