Clunk noise while changing gears (mostly upshift)

[kachua]

Hello,


I can hear something clunk from inside gearbox whenever changing
gears (only upshifting, 1st-2nd, 2nd-3rd, 3rd-4th) in little low RPM.

It seems that it is kind of known issue from mustang or even focus st.
They are using same gearbox?

I googled all threads about the clunk issue but there was no conclusion.
No one got the issue fixed for sure, it seems.

Is this normal? I never heard this noise from other 3 different manual
transmission cars, toyota, honda.

 

[me32]

Check your tranny mount.also check the fluid

 

[boombots]

It's the dual mass flywheel. Mine clunks a lot.