Anyone running 275/60/15's on a stock 8-3/4

Mopower- I like the way your Demon sits. Thats what I am looking for. I would buck up for the offset shackles but I just dumped a bumch in the rearend including new straight shackles. I take it the tires would rub without the shackles in?What rim demensions (backspacing,width.etc)?

Mrmopartech- Geez now your talkin. I think that is a little out of reach I also have to buy studs and slick/tubes for another set of wheels. Did you fit those on a stock 8-3/4? What kind of backspacing?

Anyone else running these tires of a stock rear suspension?
Kevin