ReadyLIFT's all-new Upper Control Arms provide the strength of a race-style uni-ball arm with the ride quality and characteristics of factory parts through the use of a newly designed High Angle Ball Joint. These new arms offer increased strength and travel for your suspension, with corrected geometry and alignment after your vehicle is lifted. The new UCA's are designed for OE like ride quality on-road without the noise of traditional uni-ball arms. “Our proprietary pivot bushings used inside the control arm pocket, ReadyLIFT uses proprietary Terrain Control Technology bushings to ensure quiet, durable, and stable pivot performance. Finally, ReadyLIFT arms are powder-coated for an attractive yet durable finish combined with a sealed dust cap providing for years of quiet performance.