The UMI Performance coilover lowering kit for 1964–1966 GM A-body combines a hybrid front coilover system with Viking double-adjustable shocks to lower and tune stance and handling. It offers selectable front spring rates including higher rates for improved cornering, 0–3" front drop and a 1" or 2" rear drop option. Shocks offer 19 compression and 19 rebound settings for tool-free tuning at the knobs.
UMI Performance 64-66 GM A-Body Spring/Shock Lowering Kit 1in Rear 550lb