Among other things, the bushings are not symetrically designed. They are designed to take loading in specific directions. The ones I would worry about would be the rear bushing of the front lower control arm. When they are turned they face the load with the wrong support. This is a definite no-no.
Another problem faced by shops without frontend racks is that the bolts holding the center of the bushing to the frame should not be tightened while in the air hanging from a frame lift. They need to be tightened while sitting at curb height on a wheel type lift. By tightening with the wheels dangling the bushing is stretched more than its normal compression travel when sat back on the ground. This will destroy a bushing in no time and also change its strength in the appropriate direction.
Bosch Master, ASE Master, L1
33 years MB technician