HAVE 2010 DODGE JOURNEY R/T WITH 225/55/19 WHEELS ON IT. CAN I PUT 235/55/19s ON IT FOR BETTER TRACTION IN THE WINTER?

 

You should be less concerned about bigger and think about the tread of your current tire. Maybe switch to a more aggressive tread for the winter and keep the same size. At any rate, that size should fit. You will gain less than 1/2" in width and less than 1/2 inch in height. Don't know how much better traction that will give you if you get the same tread you have now.