I picked up new front shocks at Advance Auto. They come with new bushings. My old shocks have a bushing about the size of a quarter on the bottom, and the size of a half dollar on the top. My new shocks have two bushings, each the size of a quarter. Should I use all new hardware, or were were the bushings on the old shocks a different size on the top for a reason? The shocks I am replacing are not originals, so it is not factory. Help, please :Brow: