well, for one, the new tires will be slightly shorter. .6" shorter overall, so that would be .3" from the hub up.
Look at the tires you have now, do they clear everything? How much room is there? Now look .3" down from where the top of the tire is, is there room there? Is there 10mm more room? Now jack up that tire. Fully compress the suspension. Check the same clearances. Then you'll know for sure if you'll be ok.