<VV> Re: FC pinion shaft gear & odometer

[Sethracer at aol.com]

In a message dated 9/20/2006 11:55:31 AM Pacific Daylight Time,  
dmonasterio at megared.net.mx writes:

I  am playing with my Rampside's speedometer to make it reading Km instead of 
 miles (have several disassemblied GM speedos) but, as a starting point, I  
don't remember two things:
1.- How many turns on the  speedometer shaft for each mile ?
2.- I remember that  the drive gear pressed on the diff's pinion shaft has 
multiple threading but,  don't remember if 3, 4 or 5 threads. 
This is for  doing the necesary math in choosing gears.

As  always... thanks in advance for any input.

Daniel  Monasterio



Hey Daniel - Another option? Corvair that were delivered in Europe used  
Metric Speedometers. I had a 200 KPH speedometer assembly for a 67 Monza that I  
picked up when I was in Belgium. You might inquire if any of the European  
residents has a metric early model speedometer or knows where one might be in a  
junkyard there. Of course, I doubt if the Spyders delivered there had anything  
special. You might have to go back to the standard gage pack. - By the way,  
there is at least one manufacturer that made an adapter unit that fits in the  
speedometer cable in-line, to correct the cable speed. I think Stewart-Warner 
 made one. It was available in several different correction ratios. - Seth  
Emerson