largest tire for 05 ltd v8 ? 275-75-17?

[witchdoctor]

looking to fill up wheelwell space on 05 LTD. how much larger can the orig 265/65 be increased on stock 17 5-spoke rims without major rubbing?

 

[rook]

265/70/17 is the largest you can go without a lift. search the site for tire sizes and you will find a lot of feedback