hey guys i am a first time chevy owner and would like some input on a few things. i have a 06 silverado crew cab 4x4 and love it! 1. i raised the torsion bars 7/8 inch to get level. what is the max tire i could fit with that? 2. if i added a 1" torsion key to the front and 1" block in rear what size tire could i fit? 3. what is the stock rim width for my 17" wheel?