Dave is correct, but with high mileage, my mentality is replace it while in there. It would suck that your new shocks can go another 100K but then the bearings go before and you have to do all that work. You don't want to damage ball joints boots in the removal to save money on new parts. If the parts are expensive, I would reconsider, but they are cheap new if you stay with OEM bearings, not adjustable or offset.