Depending on how many miles Mark has, it might be a good idea to change the springs too. I just changed the springs on my LS, and they made a HUGE difference in ride quality, but I did have over 300,000 miles on the old springs. :D I take it you changed your shocks a long while ago becuase prices have gone way up on these parts! I remember grumbling about paying $70 a piece for shocks when I changed mine a few years ago, but that's nothing compared to the $120 they go for now!