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UMI lower A-arms for 1978–1988 G-body trucks are fabricated from DOM tubing with CNC notched ends and TIG-welded construction for a precision bolt-on fit. These lower arms include greaseable fluted polyurethane bushings, preloaded ball joints, polyurethane bump stops and recommended alignment specs. They work with factory spindles, lowering springs and common coilover kits like QA1 and ship assembled for easy installation.
UMI Performance 78-88 G-Body S10 Tubular Front Upper & Lower A-Arms Poly
