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The UMI Performance rear control arm kit for 1968–1972 GM A-body replaces stock lowers with fully boxed 3" x 1½" rectangular-tube lowers that preserve a factory look while cutting suspension deflection. CNC-machined, fully capped radius ends keep debris out; reinforced sway bar mounts accept factory-style bars. Greaseable polyurethane bushings, durable powder coat and a one-hour install make this a practical street, strip or corner-carving upgrade made in the USA.
UMI Performance 68-72 GM A-Body Rear Control Arm Kit Fully Boxed Lowers
