Does my 2012 Dodge Journey have dual or single pistons?

What is your question?

Does my 2012 Dodge journey have dual pistons? I need my brake pads, rotors and calipers done and I'm not sure if I need to order dual or single parts and have never done this before!! I figured Calipers can't be to much harder than doing brake pads and rotors!! Thank you for any helpful advice, Monique

What makes this problem better or worse?

Nothing im not driving it

How long has your 2012 Dodge Journey had this problem?

A few weeks