You may or may not have seen this on the Syncro list but .....
back when Warren was alive, he was puzzling over how to find a sweet
spot for his p-shaft to eliminate the vibes. He called Go Westy, thinking
that since they seemed to produce such expensive gems of the Syncro
iteration, that they would likely have a method for perfecting this.

They did/do: loosen the frame-to-differential bolts, drive around for a few
days and maybe 30-50 miles, or until the vibration is gone, tighten those
bolts and voila!

Warren did it and said it worked. I have no experience with it. What you
say seems to be true, that the transaxle should be very close to 4 degrees
down. The differential will "adjust" itself given this opportunity. My only
puzzlement about this method is that it has no possible way to adjust up/
down as that requires spacers, usually at the front (van front) of the diff.
mount points to point it more up or down.

I do know that the prop shaft I have only needs the transaxle to be pointed
down "between .8" to 1.2" for it to be vibration-free, which mine is. Even
after just finishing putting a Subaru 3.0 in the van, with a "high-mount"
installation, which provides about 2+" more ground clearance, so the
tranny is pointing down more than stock.

Bob Stevens
'87 Syncro Westy

On Sun, May 23, 2010 at 6:05 PM, Alistair Bell <albell@shaw.ca> wrote:

> had time to test my Mk II laser pointer alignment tool thingy today.
> It is to be used to determine the alignment of the front diff and
> rear transmission in my syncro (which still has minor vibes around 60
> kph)
>
>