Bilstein 5100 on my TJ. Anything after 5150 I believe you need other components. I went to install Rancho 9000XL shocks, getting ready to put them on. Come to find out I need to have other mods done before those shocks can go on. They definitely did not fit my shock mounts on the axle. If you do decide to go with new shocks, I highly Recommend JKS Barpin eliminators.