>         Kurt Thomas <ILIKEVW4ME@AOL.COM
> Hi,
> My month old to me 87 syncro had a bad vibe.  Since I work on the navy's
> MH-53E helicopter which has 11 driveshafts in all I suspected a driveshaft
> vibe.  So I went and removed the center driveshaft. This vibe was most active
> at the 40-50mph mark.  Then settled out after that. After removing the
> driveshaft the vibe was all gone.  Upon inspection of the item I noticed the
> rear u-joint was sticking on one axis.
>
>   Has anyone else had this problem?
>   Has anyone replaced the u-joint since the driveshaft is non-serviceable
> part?
>   Any other thoughts?

Just one. How can a guy who works on an aircraft with 11 driveshafts
subscribe to the
notion that the Syncro driveshaft is non-servicable? Not easily
serviceable perhaps?

Just kidding. I too am interested in this question. My 87 may be
suffering a similar,
but less noticable problem.

>
> Kurt Thomas
> 87 syncro

John-Reed Maffeo 87 Syncro