Brand New Front Upper Control Arm For 2-4 Lift Kit. The upper control arms (UCA's) are stronger than the stock arms and are 100% bolt-on. 4130 chromoly tubular upper control arms are includes 1 I. Uniballs that feature a heat treated stainless steel ball & heat treated stainless steel race for maximum corrosion resistance and component longevity. The UCA's are a direct fit and will work on trucks that are have leveling kits, or lift kits.It is a must have to add strenth and performance to your truck while on or off road. Weak OEM ball joints present problems by limiting suspension travel potential, especially when using 2 or more lift on your truck. The UCA is allowing for smooth and clean wheel travel without worrying about factory ball joint bind; also correct alignment geometry on lifted applications. Heavy Duty Upper Control Arms x2. Installation time is approximately 1-2 hours. Ford F150 04-08 4WD Included FX-4. Lincoln Mark LT 05-08 4WD. The item "Silver Front Control Arm For 2-4 Lift Ford Lincoln 4x4 FX4 2004-2008" is in sale since Wednesday, July 26, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Lift Kits & Parts".motorsports" and is located in Beverly Hills, California. This item can be shipped worldwide.