hqinusa

Can I use 245/55R 19 on my 2013 Journey R/T with no problems?

yes.. I used to use those, but upgrade to bigger tire.

I've used 225/55/19s and 235/55/19s... both work fine. However, I'm trying to get the biggest (tallest) tire I can. Has anyone put a 245/55/19 on a Journey?

I have a new 2012 Journey with the Uconnect Touch 4.3. Is there a way to upgrade to 8.4 ? In past Chrysler vehicles I could and it typically required a new bezel and of course stereo, but all the connnections and wires were there. Anyone have any success upgrading ?