The left one is shaft of v2, right one is of pro-x

Nice job then....👍

my tail rotor shaft is a bit bent, they didnt have V2 tail rotor shaft but they had V3 tail rotor housing, it does not have a roller, will it be good to use it on my V2?

Sure why not I'm using same tail rotor.

But before flying always double check the belt tension...

Will replace the tail mount then.

👍

Tried putting v3 tail mount in V2 but the V3 mount slips. So I have changed the tail rotor shaft and now there is no vibration in tail also.

This also happens with me hence I wrapped a electric tape on boom which is then non slip ( a thin layer which ensure fixed tail boom) pic attached.

And now it is much sturdy....

I have setuped every thing on heli except blade tracking. I have balanced the blades. But when I started to do blade tracking, I saw that there is no tread link to adjust to pitch of the blades. Can someone help me in this?

Can't understand send pic

In the pic, see the link rod marked by the arrow. That link rod have treads and can be adjusted, but in my heli, it's solid and there is no thread.

There must be extra room for the movement inMay be any one linkage rods may got extra  or less used. The setup that you have done is correct but may be all length are not setup correct to their length. Actually the length of all linkage rod given in mandle are different for everysetup and every model.

Setup must be done at 50 percent of throttle stick or 0degree of pitch

Will try today

Did you have plastic link??

See this is the link

If you can see this link in my case the thread are not visible but in your case they are clearly visible. So try resetting linkage length

yes, now I am trying to adjust that link.

I Am seeing that When I am spooling up, the gyro is okay, but at high speed the heli starts to spin.

Have you set gyro  offset properly...

Or check grup direction...

 I think I am unable to set it up. Need help

Have gone through any youtube video. It is unable to explain everything about gyro. It also depends on which gyro which is you are using