I have a 2002 DHS and plan to replace rear shocks. I am assuming that I have the basic air shock leveling system but just want to make sure that I don't order the wrong shocks. Of course the word "shock" would be appropriate as I notice the electronic shocks go for around $500 EACH where the rehular ones are around $100 for a pair. Would appreciate any help. For what it is worth the vin# is 1G6KE57Y82U152903.