I'm looking for a leveling kit with green keys and (4) bilstein shocks,where is the best place to get it (cheapest) ?chevy dealer doesn't know what i'm talking about .are the green keys a dealer item ,and if so what is the part number.the front shocks should be 2 inches longer.

I just bought a Cognito kit. It wasn't cheap but I may lift it 6" later and it has all of the right parts.

http://www.cognitomotorsports.com/

Use the stock keys & check with the vendors here, somebody has the extended bilsteins in stock, sorry I forget who.