Only time I've seen the VDM not show up is when certain tunes are installed. I didn't have this problem with Cobb/Goosetuned but if you read back thru this thread others had this issue until they removed the tune
Did you replace the IWE check valve, solenoid or both? If both, check to make sure your vacuum lines are fully seated and test that they hold vacuum. I just went thru this though and ended up replacing the IWE itself to resolve
Most likely the vibration you're feeling is IWE / wheel bearing related.
Depending on how bad the groove is, it's not a bad idea to replace both rotors. Notched rotors don't dissipate heat better
To confuse everyone even more I show HUB-437 for trucks before 12/12/18 and HUB-479 for later builds. Be careful on the HUB-471 as it does not list Raptor on RockAuto. The HUB-479 are $400+ each like mentioned
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