Bring back firm, fade-free rear damping with the KYB Gas-a-just Suspension Shock Absorber KG5504, a high-pressure monotube gas shock for cars and trucks. It installs as a direct-fit rear replacement across a wide range of classic GM applications, including the 1964-1973 Pontiac GTO, 1968-1977 Chevrolet Chevelle, 1968-1977 Oldsmobile Cutlass, 1980-1989 Buick Electra, and 1977-1996 Chevrolet Caprice — see the Buyer's Guide tab for the full list of 47 applications.
- High-pressure monotube design: separates the nitrogen gas and oil for fade-free operation and instant response, and it never experiences fade due to aeration.
- Two working chambers: an air-free hydraulic piston and valve area for responsiveness and control, plus a high-pressure nitrogen gas area with a floating piston for a comfortable ride during normal driving.
- Up to 25% more damping: adds up to 25% more damping over original equipment shocks, with components and valving designed specifically for classic GM cars.
- Triple chrome-plated piston rod: an ultra-smooth, triple chrome plated rod helps reduce seal wear, since fluid leaking can be a cause of shock failure.
The higher gas pressure responds quickly to improve steering response, and the Gas-a-just helps keep Electronic Safety Systems performing as designed by supporting the suspension, brakes, and tires. Its added damping suits vehicles that work, tow, and run larger, heavier tires and wheels.
Interchange: 69604 · 5802
