50mph vibration

[mole42]

Hi,
My car has started with transmission vibration between 50 & 70mph.
I’m driving to Berlin later this year and expect to cruise at 110mph, the car likes that speed in Germany, but I don’t want to be afeared that something will let go.
I have new propshaft, driveshafts and a rebuilt diff with a ZF gearbox but something ain’t right.
What would you check first?

Richard

[PhilB]

If it was Ok and suddenly isn't, have you lost a balance weight from a wheel - or from a shaft if they have been balanced?

[LAMBRETTLAD]

Worth checking the shape of your tyre , ask me how I know

[new to this]

Also worth checking the Diff nose extension

Dave

[SaphireSpud]

Hello Richard, the most common cause of vibration between 50 and 70 mph is a wheel out of balance. Regards, John.