I just went from 205's to 215's and mounted them on our Grey Wolf yesterday. On ours the closest point of contact was the wheel well and it was over 1 inch away.
Just check your clearances, being the very small increase in tire size you will more than likely be OK with the 215's. But just run your hand around the inside of the tire just to make sure that there isn't anything sticking out that you can't see.
TT-2013 Passport 3220BH
TV-2004 F150 FX4, not exactly stock...
with 2001 Kodiak K215: 2010-10, 2011-12
with 2012 Grey Wolf 26BH: 2012-19, 2013-24, 2014-11, 2015-6
with 2013 Passport: 2015-13, 2016-15 booked