I have a 2k dakota 2wd v6 automatic. I am trying to figure out what size sway bar bushings I need. I have 160,000 miles on factory ones. I replaced the front links and that made a big difference but i noticed the sway bar bushings are dried out and the shops want to know my size. Also, on the back the links were rattling so I tightened the bolts and the rubber still looks fine. Should I replace the back links also? Thanks ahead of time.