I repaired an odometer for a friend by installing a new gear from Palo Alto
Speedo.  The odometer works great, but the speedometer is now pretty far
off.    It is reading much faster than actual speed as checked by the
interstate mileage markers at 60mph.  When replacing the speedo needle,
there evidently needs to be some pre-load of the dial clockspring.  I guess
this must be done by trial and error?  I re-installed it with no pre-load.
Anyway, what is the consensus for a tach reading at 60 mph on a  4-speed
'87 GL.  3200rpm? 3400rpm?  He has stock size tires.    This will make
calibration easier than getting on the freeway.

                                                                        Jay