My right rear hits really hard. If I put weight on that corner I can't get the corner to push down much. ( in my driveway ) On some dips in the road the tire rubs. On raised surfaces it hits hard as hell. The shock is from the H&R cup kit with probably 15-20,000 miles on the setup. I've got Roush struts ready to go on in the spring. I'll buy the rear shocks soon also. I just don't want to put shocks on with the same problem. The springs are H&R Cup Kit all the way around.