I've never had a car that needed this, there was always play even when torquing down bushings. The resistance came from the shock/spring only.Basically yes. as long as the suspension is at ride level and those forces on the suspension are in place. If you can put the rear wheels on to do this I would. You could also loosen the rear front control arm at this time and re-set that as well. No other bushing on front needs to be set in this manner.
I will tell you, once I made this mistake. I installed new bushings on a car, did not set it at ride level but instead up in the air. Car sat 1" higher and wore the bushings within a few months. This was when I was much younger and ignorant to this.
Learned my lesson.
Also while I'm down there I need to torque the ball joint nuts as well, those should be set fully loaded.