I'm running the Quicklifts (not bad, but have a tendency for the coils to sag) their warranty department is timely. I've only had to replace one so far, I've had them 2 years, and I drive it hard. I tucked 35/12.5/R20's under mine. My tires were rubbing the LCA and the frame when I would turn. I started running 1.5" hub centric, billet aluminum wheel spacers and fixed the problem. I had to trim some of the plastic wheel well but nothing major and unless you know how the plastic is supposed to look you'd never tell the difference.

 

BFG MUDs on factory rims. I read another post that used them on a 2004 model just like mine so now I'm definitely interested in those tires.