If you have that budget then do a SAS. You can even pay someone to do the welding with $2k. The 4" IFS lifts are just not that rugged. They produce too much leverage on the factory brackets. I only have one becuase I got it for $300 used, and would not pay more than that for a brand new one.

I have completely destroyed my ifs, and yes I beat on it when I need to, but its by no means recklessly. There /IS NOT/ an unbent bracket in my front end (excluding steering). I have broken and repaired all three diff drop brackets at least twice. The ifs subframe is bent backwards (again, the drop brackets provide to much leverage and the factory frame bends). My front diff is slanted about 2" to the passenger side and the CV axle is no longer long enough. All of this happened through normal trail riding, mudding and rock crawling in nh (nothing compaired to out west). Took about a year before everything added up and is not un repairable. Basically I have a 2wd truck right now... which is why I have a solid axle in my basement ready to be welded in.

Long story short, the IFS lift wont last long... do the SAS <img src="/forums/images/graemlins/kewl.gif" alt="" />

-Scerb