I would further that whole underside/suspension check. Things like swaybar endlinks are a good thing to replace if they are rusted out. Also. I didn't mind my worn out struts ALL that much, but because of age and mileage, they failed in a way I didn't know they could. Check the physical integrity of them visually. Otherwise, lets see, I would say take it to a shop and have them do a total vehicle checkup. That would help alot. Just ensure all your fluids are good and looking clean. Like you brakes should be fully bled out, PS flushed, cooling system flushed, etc. No doubt the car probably has another 170k in her.