The only link that affects alignment is the toe link. Its the one with the eccentric bolt and washer on the body side. If you dont disturb the eccentric end, alignment should be fine. The remaining links are all "fixed", so no special precautions are needed. When I do these axles, I just undo the axle nut and give the end of the axle a sharp hit with a plastic or lead faced hammer to get it loose. Just dont use a steel hammer, or you will maul the threads. When you reassemble, its best to do with the wheel on the ground, but thats tough without a lift.