Grease the control arm bushings?

[Pine Bark Auto]

My statement stands. Those appear to be OEM type bushings. Hard to tell by the picture, but I bet the inner sleeve is serrated, or has "teeth" on each end. Those teeth will lock in on the control arm shaft on one end and against the large washer on the other end. Wherever you tighten the bolt is where the bushing will flex from. If suspension is hanging, bushing can only flex in one direction (towards compression) and as you can see, there just isn't that much flex available. However, if you tighten at normal ride height, you will be at about the middle of suspension travel with flex available in both directions.

After all this typing (which I am not good at), I just realized I am assuming you understand that on the OEM bushings, the inner and outer sleeves are bonded together by the rubber. On poly bushings, the poly portion rotates, or moves within the sleeves, thus requiring lubrication. The reason for poly is to allow a more freely moving suspension and less deflection. For a street driven vehicle, OEM provides a much smoother and quieter ride.