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UMI bolt‑in rear coilover conversion brackets for 1964–1972 GM A‑Body cars accept 2½" racing coilovers and provide adjustable ride height in the -2" to -3" range with a 250 lb spring rate option. The kit includes reinforced upper mounts, FEA‑designed lower brackets that bolt to Quick Performance rear mounts, and trailing arm height adjustment for instant center tuning. Produced and tested in Philipsburg, PA using US materials.
UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 250lb Spring Rate
