Topic: MT output yoke and driveshaft issues: grinding humming 2006 Solstice help

[Steelmesh]

I have prepared multimedia resources to help diagnose my grinding clunky humming noise issues.

I purchased a used propeller shaft / driveshaft / Cardan shaft with 15k miles, painted it with some Rust Reformer

Driveshaft Noise, weird sounds like noise coming from the tube:
https://www.youtube.com/watch?v=lqO_wYepzxU

Loose manual transmission output yoke play lash, what's the deal with the loose but pinned nut?!
https://www.youtube.com/watch?v=TYjnKJIJQC8

[Sly Bob]

The service manual lists two items that can cause what they describe as a scraping noise.

1) The pinion flange deflector or the center bearing is rubbing.
2)The heat shield is rubbing.

I certainly don't believe it's the latter.

It also states that a Ping, Snap, or Click Noise could be caused by "The fixed yoke or the pinion yoke is loose." and refers to fastener tightening specifications.

The drive shaft is connected to the transmission via a constant velocity (CV) joint instead of a slip joint. Looks as though that CV joint is bad on your drive shaft as there shouldn't be that much play in it. The "new" one looks to be better.



 

[Steelmesh]

The new driveshaft helped out significantly with the noises.  There is still a little noise however in 4th gear when coasting, like a humming/grinding noise, this noise was there with the old driveshaft but worse.