Heavy Metal Suspensions - 1997-2002 Ford Expedition and Lincoln Navigator (2WD 4WD) Rear Upper + Rear Lower Control Trailing Arm Kit With Polyurethane Bushings High Strength Carbon Steel Kit DETAILS: Maintains Proper Axle Alignment APPLICATIONS: 1997 - 2002 Ford Expedition (2WD 4WD) and 1997 - 2002 Lincoln Navigator (2WD 4WD) PACKAGE CONTENT: (x2) Carbon Steel Upper Control Arms w/ Polyurethane Bushings, (x2) Carbon Steel Lower Control Arms w/ Polyurethane Bushings, Hardware and Installation Notes TIME FRAME: Installs In Approximately 2 - 3 Hours. Heavy Metal Suspensions products are the safest way to lift your vehicle without compromising ride quality. CNC constructed with computer programmed pulse welds, Heavy Metal high-grade steel is guaranteed never to break under even the toughest conditions. Each kit comes complete with hardware,installation instructions and ASE certified telephone support.