Tail vibration

[willwaw]

Hi friends
I've been dealing with a lot of vibration in my 7.2.
I change almost anything including flybarless unit and servos.
I ran a bench test yesterday without the main blades and the vibes are in the boom area.
Please take note that I already replace de tail shaft, tail hub, bearigs and torque tube.
I am lost.
Here's a short video.
I would really apreciate any income

https://youtu.be/-fkFkWQw4MQ

[jakehovarter16]

if you glue the bearings on the torque tube you might have vibration also check bearing placement on the torque tube check front tail gear mesh also which tail blades are you running??

[UPSDOC]

I also had tail vibrations on my 7.2 and was able to reduce them by installing an additional bearing on the torque tube. I now run four bearings instead of three.