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One major improvement over stock is the ability of the lower control arms to pivot at the frame without adding excessive loads to the frame mount. Global West uses a Teflon lined spherical bearing instead of rubber or polyurethane bushing. The bearing allows the arm to pivot and tilt without bind. The bearing also allow the rear suspension to arc do to the panhard rod. The panhard rod technically pushes and pulls the differential side to side as the suspension moves up and done. If a spherical bearing was not used in the lower control arm at the frame mount, restriction to movement will occur.On the rear end side we use a rubber bushing.Why you might ask?Rubber allows lateral movement that is required because of the panhard rod. The factory used a panhard rod to control the rear end side to side movement. Unfortunately, the panhard rod is fairly short. As the rear end moves up and down, it also moves slightly left and right because of the arc of the panhard rod. Therefore, rubber is the best choice for our application. If polyurethane was used, it would restrict the movement.Watch the product overview video above for more information.Experience Unmatched Quality with our 1965-1970 GM B-Body Rear Lower Control ArmAt Global West, we take pride in delivering top-tier suspension components for your classic American muscle cars. Our 1965-1970 GM B-Body Rear Lower Control Arm, part number TBC-50, is no exception. This component, equipped with a spherical bearing and rubber bushing, is designed to offer superior performance and durability for your Impala, Caprice, Biscayne, or Bel-Air. Crafted with precision and care, this control arm allows your vehicles suspension to pivot at the frame without adding excessive loads, ensuring a smoother and more controlled ride.As a company that values customer satisfaction, we provide comprehensive support to assist you every step of the way. From detailedDIY instructionstostep-by-step video tutorials, we make the installation process as straightforward as possible. And if you ever need additional help, our dedicated customer support team is always ready to assist you.Our commitment to quality doesnt stop at our products. We also offer competitive prices, ensuring you get huge value for your money. So, whether youre restoring a classic or upgrading your ride, trust Global West for the highest quality suspension components.Explore more options for your classic car in ourChevrolet Parts Onlinecategory. If youre specifically looking for parts for your 1965-70 Impala, Caprice, Biscayne, or Bel-Air, check out our1965-70 Impala Partssection. And for a wider selection of suspension components, dont forget to visit our1965-70 Chevy Suspensioncategory.