Subman576: This is VERY interesting.
I can readily understand how you can see that there apparently is no donut on the front end of the new drievshaft. But, how do you know it's a thicker material? Or, did you mean it is a larger DIAMETER?
IF it is either thicker OR a larger diameter, that would definitely change the vibration characteristics, and MIGHT be GM's attempt to finally address the "ringing" I am hearing on mine.
The "donut" that you refer to as the newest driveshaft NOT having (mine HAS the donut) is that heavy ring of metal that they put on the front end to add mass to try to address the vibration that is causing the ringing. Instead, I believe that the donut MAY have have been insufficiently effective in attentuating the vibration, and has instead added more FORCE to the vibration that has in turn attacked the seal and tailshaft bushing.
Jim G
I can readily understand how you can see that there apparently is no donut on the front end of the new drievshaft. But, how do you know it's a thicker material? Or, did you mean it is a larger DIAMETER?
IF it is either thicker OR a larger diameter, that would definitely change the vibration characteristics, and MIGHT be GM's attempt to finally address the "ringing" I am hearing on mine.
The "donut" that you refer to as the newest driveshaft NOT having (mine HAS the donut) is that heavy ring of metal that they put on the front end to add mass to try to address the vibration that is causing the ringing. Instead, I believe that the donut MAY have have been insufficiently effective in attentuating the vibration, and has instead added more FORCE to the vibration that has in turn attacked the seal and tailshaft bushing.
Jim G