tires for blazer

I have a 97 s-10 4x4 blazer. I want to put the largest, widest tires on it i possibly can without having to put a suspenion or body lift in it. Can anyone tell me what tire/wheel sizes would work. right now i am looking at some 31x10.5x15 pro comp tires on 15x8 wheels. Would this be to big?
Thank you

i have 31 10.5 15 mickey thompson baja claws on my blazer. they fit fine rub every now and again, cranked my torsion bars up a bit though. but thats the biggest u can go.

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