I have a 2003 Chevrolet Impala Ls. My car needs to have some suspension and steering parts replaced. The right front pretty much needs everything except the spindle and the strut. My right rear suspension needs to be replaced, currently the tire no longer rests at 90 degrees. What parts can I replace with used ones? Also, are there any corresponding parts that I should also replace on the left side as I replace them on the right?