{"product_id":"umi-performance-64-72-a-body-rear-lower-control-arms-roto-joint-roto-joint-4040-b","title":"UMI Performance 64-72 A-Body Rear Lower Control Arms- Roto-Joint\/Roto-Joint - 4040-B","description":"UMI's  tubular lower control arms utilize our Roto-Joint technology for a bind free performance  and quiet comfortable ride quality. The Roto-Joint design is a pivot ball lined  with a greaseable delrin race designed to offer 28 degrees of total unrestricted  movement, more than adequate for a bind free, low friction operation. The  Roto-Joint design improves performance over the factory rubber and aftermarket  polyurethane bushings by allowing the suspension to articulate correctly, and  provide precision handling. The installed UMI Roto-Joint allows rear end free  movement when high handling, auto cross or road race is a concern while still  being a 100% streetable setup. The installed delrin race, which lines the  spherical ball, absorbs shock and road noise for a quiet and smooth operation  on any street or track driven vehicle. This control arm set features  Roto-Joints on both sides of the control arms. This is designed for maximum  performance and suspension travel. Both control arms feature the correct provisions  for adding a stock or aftermarket sway bar. Sway bar holes are reinforced with  a 0.120\" wall thickness steel sleeve that TIG welded and sanded into place. All  Roto-Joints are greaseable and low maintenance making an excellent street setup  for your cruiser or race car!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eEPA Status: N\/A","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":53937034199358,"sku":"4040-B","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/8997\/3054\/files\/c220a762320593b6257c9a23577d081f.jpg?v=1784676120","url":"https:\/\/stpaulspeed.com\/products\/umi-performance-64-72-a-body-rear-lower-control-arms-roto-joint-roto-joint-4040-b","provider":"St.Paul Speed \u0026 Performance","version":"1.0","type":"link"}