There is a day of good reading on this subject. Lots of info for you to sort through, but you should get a good education by reading it all. Use the "search" function on the top task bar and try typing in "285/75 17 fit" or maybe "chop" instead of lift or even "fit 34" tire". Just play around with it and you will find all kinds of good info.
There is not an easy answer to this - everybody has a different answer depending on what 3" lift they are using (is it really 3" or 2" or 2 1/2") and what tire they are using.
As for me, 3" OME mediums with Nitto 285/75 17 rubbed every once in a while, however going to the Toytec adjustable coilovers did work.