I drive a lot on the highway with cruise control on. When I first got the truck I noticed how closely the speedometer needle and digital display matched. Everything was great. I didn't need to have the digital speedometer up to get an accurate speed. I got an alignment done and on my next highway drive I noticed the speedometer needle was now 3MPH faster than the digital. Digital readout says 75MPH and the needle is at 78MPH. Used a digital app to determine that the digital readout is correct and the analog needle is fast. It's been like this ever since, 1000 miles of highway driving. Took it into the dealership for the recent recall on the PCM module and asked them to fix it. They told me there were no error codes and they couldn't duplicate the problem. The did the PCM update and said that should fix any issues. It did not. Still having the problem - the speedometer needle isn't accurate and I have to use the digital display to know my correct speed. The truck is a bone stock 2018 1500 with 5.7 hemi. Factory wheels & tires. Anyone else experiencing a similar issue or have any ideas? What do I tell the dealership service department when I take it back? It doesn't seem like they consider it a problem.