4th gear 2800--3K rpms

Wow how someone can be educated here is unphukkenbelieveable .. Thank you guys.
I want to' also ask if I press the clutch when it's vibrating at that time what should happen ?

Now I will still have my floor on the gas right? Cause once I let go at that remit stops that wicked vibration.
Sport at on the gas when it starts vibrating just dump the clutch and wait for what to happen?

Ok also going to check the joints answer it the drive shaft needs to be balanced ...

Thanks.
Maps

This last post was a bit hard to follow, but by pushing in the clutch and letting the engine speed idle down, you are taking the engine, flywheel and pressure plate out of the equation temporarily. If the vibration remains, it indicates the issue is in the transmission, driveline or rear end.