These monoball cartridges replace factory rear shock Lower mount bushings with hardened-steel spherical bearings. The factory rubber acts as a spring in series with the shock. This rubber spring-action is completely un-damped and reduces the shock ability to control the tire contact patch. The spherical bearing allows the damper to do its job and control the contact patch.

High tolerance machined housing allow for simple press fit installation.

The kit includes 2 monoball bearings. 1 per side and inserts into the rear upright. Order one kit per car.