Officially and through the dealer the answer is no. However it can be done with some drawbacks. I did it on my 14 Big Horn. You have two options. There is a third party bezel you can purchase with or without volume control, but this option doesn't give any way to factory reset the 8.4 should you need to. It's also the cheaper option. You can purchase it from OEMAUTOPARTSCO, and no I'm not affiliated with them. The second option will give it a factory look. There is a parts list you will have to order. The bezel, an AC module, and a custom harness to convert the wiring. There is another forum that has all the detail you need to make that harness. Not sure anyone sells it outright yet. Drawbacks are its not official, so I don't know what you will deal with when trying to update maps for the NAV model. Also the uconnect update site requires the VIN of your truck. You might have to find a truck with an active VIN and 8.4. I also noticed some slight behavioral differences between my Rebel with factory 8.4 and my Big Horn conversion related to climate controls. Nothing major, just noticed differences.