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UMI bolt‑in rear coilover conversion brackets for 1964–1972 GM A‑Body cars enable use of 2½" racing coilovers and offer ride height, 225 lb spring rate and damping adjustments. Reinforced upper mount and FEA‑designed lower brackets bolt to existing Quick Performance rear lower control arm mounts and include trailing arm height tuning to set the instant center. Manufactured and tested in Philipsburg, PA with US materials.
UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 225lb Spring Rate
