In a message dated 4/8/03 11:18:33 AM, Malcolm.Stebbins@MSVU.CA writes:

<< Several years ago, someone recommended a shop in
Wisconsin or Minnesota that could "properly" balance a
syncro driveshaft. >>

Malcolm, my man, the first time I renewed a Syncro's center driveshaft
u-joints, I asked the owner of the of the drivetrain shop where I bought the
u-joints if he could balance the driveshaft when I was done popping in the
new parts.  He looked at me as if I were a mechanical dilettante and asked,
"Why?  You're not making up a new driveshaft."  And, you know, he was right
as long as the u-joints are "properly" installed.  I've done 3 to date and
the work always cured a vibration rather than caused one.

I've detailed the tedium of Syncro driveshaft replacement more than once on
this forum and I assure you, if the time and the care are spent to accurately
center the u-joints within their yokes, there is no way in hell that
balancing is necessary.

George