They can get your original cluster and can reprogram the mileage on it to your new dash. As I remember the cluster has to be given to them ahead of they buy your new just one. #1 I have a 2017 mustang gt high quality guide. I’m scheduling on wiring https://marcoghseo.spintheblog.com/32290728/the-smart-trick-of-mustang-digital-dash-upgrade-that-nobody-is-discussing