hyeteck

I'm trying to diagnose a drivetrain vibration problem on my 06 z06.

The vibration is most noticeable in 2nd gear above 3k rpm. The vibrations get muffled and become more of a buzzing noise in the higher gears when the car is moving much faster.

The vibrations are there during acceleration and deceleration.

While in 2nd gear at about 4k rpm, if i push the clutch in and keep the RPMs exactly where they were while the clutch is pressed, the vibrations are gone.

Any idea what the issue may be? Also, can the vibrations cause abnormal wear in the rear tie rod ends? Mine are badly worn, causing the car to walk around under heavy acceleration but i'm hesitant on putting new ones in until I resolve this vibration issue.

Unreal

Driveshaft couplers or related coming apart.

hyeteck

Can I get to the couplers with basic hand tools in my garage on jack stands or would I need to raise the car higher to pull the torque tube out?

Unreal

Depends on what you mean by basic hand tools and jack stands. I've done plenty of transmissions with a floor jack on jackstands. So it is possible, but not fun.

RichieRichZ06

Sounds like the pilot bearing and/or input shaft is worn or there is lateral run out on the shaft. Second guess is the couplers coming apart.