You can move the needle on other than the earliest speedos, in my
experience. It is a little tricky.

The Syncro has a set of speedo gears inside the front diff. These were
available in various ratios to accommodate different tire sizes AND
ring/pinion ratios. Changing the ring/pinion ratio directly affects the
speedo on Syncros but has no effect on 2wd.

Mark

Richard A Jones wrote:
> The speedo in my '87 Syncro reads 4 mph too high
> over the whole range.  So could I not just re-position
> the needle to fix this?  Suggestions on how to do this?
>
> The odo reads about 5% high, too.  That is, 10 real
> miles gets 10.5 on the odo.  Why is that?  Isn't it
> geared correctly?  Could Palo Alto Speedo have changed
> this when they overhauled it a while back?
>
> Richard
>
>
>