33 12.5 20 ?

[92yukon]

I'm thinking about running with this size tire and a 20x10 wheel and was wondering what backspace and offset wheel I would need, also what would I need to do suspension wise, would a leveling kit be enough ? This would be going on a 96 2 door Tahoe 4x4. Would like to see some pics if anybody has some

 

[livelifewideopen]

I run a 1988 k1500 on 33x12.5r15s. Leveled, bumper trim, and a little trim on the bottom of the fender. Rear clears a 33 no problem. Ill post pics after work, im not sure of the backspacing but they are much wider than factory.