I just put a new Skyjacker Softride 4" lift on my stock '85 CJ-7. Trouble is, it only lifted it 2.5"! I believe I have the right springs... J40FS, J40RS. So I'm a little disappointed and I don't know what to do. I paid a lot of money for this kit and I think it should at least lift it as advertised when new. Should I use extended shackles to get all of the 4"? I don't know what to do. I emailed Skyjacker but haven't heard back yet. Any advice is appreciated.