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UMI Performance lowering kit for 1978–1988 GM G-Body applications is a bolt-in package that balances street manners with adjustability. The hybrid front coil-over system allows a 0–3" adjustable drop while rear springs offer a 1" or 2" drop to fine-tune stance. This version uses 350 lb front springs for small block cruise or moderate drag use and pairs with Viking double-adjustable shocks offering 19 compression and 19 rebound settings; optional spanner wrench and thrust bearing kits ease height changes.
UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 350lb
