Had the same problem when I bought new ones from O'reily's, it was way too strong. So I changed 1 of them back to the old, weaker ones. So i have 1 old and 1 new one. Has been on for a few years, and works great still.
1999 Cherokee Sport 4x4, RE 3.5" SF, SYE, DS, and Monotubes, Pro Comp adj track bar. Soft 8s wrapped in 31x10.5x15 Dik Cepek Mud Countrys, Silverstars w/ HD harness, Class III rear hitch, Yakima snowboard racks, cool sunroof. NP231, C8.25, and D30.