Well I saw this thread over on RPS the other day and didn't see any thread like that on here. Maybe you guys have seen or heard of it, but I have not seen anything like this:

Interesting. If it's that easy then it sounds like a good option. Just would need to figure out how much longer of a front shock you will need.
Here's the orig thread on RPS: RPS Thread: Full Size Chevy Front Spring Replacement. 2.5" Lift...

 

interesting.. the upper control arm looks maxed out though..

 

thats what shocks are for... limit down travel