Email Chysler about getting a build sheet and include your VIN and itll include the paint code but that pr4 sounds right.
Buff the truck and shine it up real good then you can use Duplicolor Color Match if it's a small area you're working on. Sand the spot down with some 80grit, wax and grease remover, prime it with the Duplicolor Color Match Primer, Base with your color, and clear it also with Duplicolor Color Match.
I only suggest the Duplicolor for all 3 because they were made for this type of stuff and work well together. Right paint color with proper time taken to do it right and it will match pretty damn close. But that's why I threw the buff into the beginning is because it will bring more of the color out.