I bought my '19 RAM Big Horn new this past June, and I've had the drone problem as long as I can remember.
I finally decided to check out the forum to see if anybody else was having the issue and .... Wow!
When it happens for me pretty much matches the bulk of what has been described here:
- RPM above the 1250 mark and below 1500.
- Any gear, any speed, but more noticeable at steady speed or slowly decelerating.
- MDS activated.
The volume varies, and I assume that's due to whatever else is in the truck at the time.
The sad part about this is that judging from the posts, there was a TSB available for this problem before I took delivery.
Anyway, looks like I'll be getting in touch with the dealer soon.