I had my spring seats replaced at the dealership and they also suggested packing the axles. I greed to it but I don't really know what purpose it served. Anyone know? I'm a female that is not mechanically inclined and I have all my maintenance and repairs done at a Volvo dealer. It costs me a ton of money but I don't know any Volvo mechanics in the Philadelphia area. So, what does packing the axles do?