This premium front coil-over shock SK-2954 is the perfect replacement for newer GMT900 GM SUVs equipped with Electronic Suspension. The Arnott designed custom-valved replacement shock fits the left or right side and is pre-assembled for safety with a new steel coil spring (Code 6DA, 7DA), Upper Shock Mount, Bump Stop, Spring Seat and Isolator. The Arnott aftermarket front shock delivers enhanced stability and excellent vehicle control and comfort. Arnott's exclusive design includes a sensor which plugs into the electronic-damping system to eliminate dash panel error messages. THIS PART SHOULD BE REPLACED IN PAIRS.