Suspension Techniques Sway bar Set. Reduce vehicle body roll and increase the traction and gripping power of your tires with a set of ST Sway Bars. Precision engineered to provide the best performance possible, our cold-formed solid steel design is powder-coated for durability and comes complete with polyurethane bushings and all hardware needed for easy installation. This kit includes everything necessary for installation including a 1-1/8" front bar diameter, 7/8" rear bar diameter, polyurethane bushings, and a full hardware kit. Perfect for street or track use. Application-Specific Notes: Must use stepped rear spring perch for rear coil spring. Adjustable anti-sway bar at the rear axle. Fitment: 1975-1978 BMW E12 530i 1979-1981 BMW E12 528i1977-1978 BMW E24 630CSi 1978-1982 BMW E24 633CSi * First photo is for reference only. Adjustable end-links and reinforcements shown are not included. Photos 2-4 show the sway bar kit.