my 4" inch lift springs spread out and i have to hammer them back together every 2 weeks or so, it's kinda scary and can't be safe... after i do it i always tighten down the ubolts again, but the rears don't have anytime of clamp on them to stop them from moving around, is there any easy fix or should i just fab up some type of clamp?

I hope I described it so you can visualize it.