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The UMI Performance front weight jack for 1982–1992 GM F-body pairs an adjustable jack bucket with an 850 lb/in premium spring to provide independent corner weight tuning and up to 2½" of lowering. CNC laser-cut steel construction, anti-rotation tab, acme-thread adjuster and thrust bearing make ride-height changes smooth and reliable. Works with UMI Afco, Viking or Koni struts and maintains factory tire clearance; compatibility with non-UMI K-members may vary.
UMI Performance 82-92 GM F-Body Front Weight Jack System 850lb Street Handling
