I can tell you about mine. I have been running 1 inch Polyurethane Daystars for almost 4 years on my 03 stepside. They mount above the strut assembly and DO NOT change the ride at all. I kept the Lexus like ride that I like so much. No problems 4 years later, still in perfect shape. Cheap too, 60 bucks on Ebay and 35 bucks to install. Good luck.