4x4 4WD Models Only Both (2) Front Upper Driver & Passenger Side Control Arm and Ball Joint Assembly - 1997-2003 Ford F-150 04 Heritage - [1997-2002 Ford Expedition] - 1998-2002 Lincoln Navigator 1997-2004 Ford F-150 F-150 Heritage - [1997-2002 Ford Expedition] - 1998-2002 Lincoln Navigator Complete Control Assembly Arm Pre-Assembled With Bushings, Mounts & Ball Joints (When Applicable) - No additional parts or tools required for installation Detroit Axle Suspension Control Arms are ready to meet the rigorous demands of todays foreign and domestic passenger cars, trucks and SUVs Detroit Axle is a leading supplier of ride control products to OE vehicle manufacturers Nationwide, that expertise translates to Detroit Axle's OE-quality