Achieve world class handling in your 1984-1987 Corvette. Bilstein Gas Shocks offer dramatic improvements in ride comfort and a reduction in driving fatigue. C4 Corvette Bilstein Gas Shocks feature a Monotube design, Hard Chromed Piston Rod, One piece Alloy Rod Guide & Seal System, Rising Rate Self-Adjusting Digressive Working Piston, patented Nitrogen Chamber & "Floating" Dividing Piston and superior fabrication. There is nothing quite like driving a vehicle equipped with Bilstein Gas Pressure Shock Absorbers.