If not, thoroughly lube the bushing before installing it. End link bushings do not need to be lubricated. A good way to do this is to put a jack under the control arm as shown in the page 2 of the proper jack points shown above. If you have zerk fittings, lubricate the midpoint bushings now. Reinstall the wheels and torque to 100 lb-ft.
Test drive the vehicle and listen for squeaks and rattles.
If you hear any, make sure that the bushings are greased properly. Only the midpoint bushings need lubrication.