These aren't a rubber bushing in shear like the OEM part, they're a poly-lined, lubricated, spherical bearing, which is why they're somewhat costly. They should just about eliminate any friction in the lower arm's up/down movement, which is a great ride quality improver*, and should also nearly eliminate any bushing deflection that would cause changes in caster or camber, which is a handling improver.
*Some years ago I swapped out the
rubber bushings in the SVO Mustang's front lower A-arms, which are bushed similarly to the Contour 4-bolt arms (rubber cylinder in axial shear), for
Global West solid, lubricated Delrin/Aluminum bushings. Movement friction went to near zero and, somewhat to my surprise, ride harshness was greatly reduced. Anytime you can get friction out of a car suspension, it works better.
I've fussed about the Contour 2-bolt control arm bushings plenty of times here, but a donut or toroidal bushing in axial shear, as these are, is just bean-counter design garbage. Drum bushings in axial shear (4-bolt arms) are better, and usually last longer, but they're still full of friction.