Thanks for all the replys. I think Im with you guys regarding keep the shackles in there stock location. Now I like Trail Toughs set-up as well....but what about approach angles...were they affected much over stock ?? From what I understand front and rear wrangler springs are the same as far as length and positiong of pin, is that true ?? The rear has more leafs. I'm going to be running a 4.3 engine, that obviously heavier, what should I run as far as the leafs ??? Thanks for all the help.