<VV> Re: decoding axles

[NicolCS at aol.com]

<Ray asked>
The ebay ad for that 69 vert got me thinking...  where can I find the info I 
need to identify which ratio axle I have without  actually measuring and 
counting turns?  Should be easy as the car is in  pieces! ggg  I'd like to know 
what ratio I've got, but its not worth a  whole lot of trouble to me.

Also, while we are at it what were the  available ratio's with the four 
speeds?

Thanks! Ray Rodriguez 65 Corsa  140/4 (under construction) <unsnip>
 
Ray, as Joel said, you can look for the faintly stamped codes, and then  look 
the code up in a book. What that will tell you is what that case was loaded  
with when it was made for the car it was originally installed in assuming it  
hasn't been changed in 40 years..  (Are you getting my drift?)  Having  
personally rebuilt dozens and dozens of Corvair differentials, often involving  
changing cases and gear ratios, I'll say that the only way to tell what you have  
is to physically check them.  You can either put the trans in 4th and count  
engine turns required to get one full turn on the axles, or you can remove the  
top cover and count teeth.  36/11 = 3.27  32/9 = 3.55.  These  were the only 
factory ratios available in a late model.  EMs could be had  with those ratios 
plus 3.08 and 3.89.  The aftermarket additionally offered  4.11.  Most likely 
you have 3.55 gears with your 140.
Craig Nicol


 



************************************** See what's free at http://www.aol.com.