Sold as a complete set of bushings and sleeves for the right and left arms (8 bushings, 4 sleeves). These replace the failure prone inner pivot rubber bushings on the factory upper a-arms. You will need a small press to push out the stock bushings, but these simply press in by hand. but these will be the last time you need to repalce the bushings. These elliminate all slop in the fatory bushings (far better than rubber or even the noisey urethane parts) We do suggest using copper based anitsieze (cheap and found at any parts store in small tubes) if you live in wet climates...typically only needed once dureing assembly.