Have a 2003 town n country van, lots of clunking noise over bumps , rough roads etc, seems to get worse, now steering wheel shakes a bit at lower speeds. Am I looking at new struts as I'm sure they are probably original, or I've read a lot about its just as likely to be the sway bar bushings, hate to spend $ 300 for new struts if that won't help at all. All advice welcome. Thanks.