BMW STD CONTROL ARM KIT (80 duro/ShA) – Control Arm Assembly Kit with Ball Joint – SKU TRC0090 Boost front-end precision with the SuperPro Control Arm Assembly Kit TRC0090, featuring hybrid bushings and a heavy duty ball joint for a direct replacement upgrade. Features and Benefits Complete front lower control arms with Hybrid SuperPro bushings and heavy duty ball joint; includes ball joint (SKU TRC0090). Hybrid bushings allow full articulation and movement without binding and with no increase in noise, vibration or harshness. Easy, direct replacement that enhances handling and performance while addressing common OE/aftermarket shortcomings. Upgraded arm design, construction, material and bushings to help eliminate undesirable arm movement and maintain better steering geometry and alignment. Designed and packaged to be replaced as a pair to avoid mismatched bushing material—install both sides together. Designed, tested and engineered in Australia. SuperPro control arms are built to high quality standards and engineered to outperform as an easy-to-install replacement and upgrade solution.