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UMI boxed lower control arms with Roto-Joint for 1964–1972 A-Body applications use 0.120" wall rectangular tubing with MIG and TIG welds, drawn-over-mandrel bushing holders, and CNC machining to resist debris and flex. One end uses a greaseable polyurethane bushing, the other a Delrin-lined Roto-Joint for 28 degrees of rotation; sway bar provisions are reinforced and the set ships assembled and ready to install.
UMI Performance 64-72 A-Body Boxed Lower Control Arms- Poly/Roto-Joint
