Some Questions About 2wd Lifts?

[Mirage775]

First off, let me say that I'm not fond of 2wd lift kits but, last year when I went looking for a new truck, I could not afford either a 4wd or an HD so, I got stuck with my 2wd, which was lowered 2" at the dealer. I really need the extra ground clearance as I have a lawn and landscape business. So, I was thinking about putting the OE rear shackles back on and possibly getting some of those 2" coil spacers on top of my springs? Where's a good place to by them and should I get the alloy or urethane ones? Also, do they truly raise the front 2"? By the way, I have a 2007 Classic Sierra. I would like to keep my stock alloy 17's and was thinking about putting some 32"x10.5" on them. Would I have enough clearance for that tire choice? Any help will be greatly appriciated? Thanks, Jason

[Mirage775]

Anyone?