<VV> Corvair half shafts...

[JVHRoberts@aol.com]

I think the Corvair tubes are thinner walled than the Corvette, and probably 
correspond to an off the shelf tube and yoke match GM used elsewhere. The 
Corvette shafts DO have MUCH larger U joints than the Corvair, and I believe the 
yokes, et al, are specific to that vehicle. 


In a message dated 10/31/2004 12:35:33 PM Eastern Standard Time, 
RoboMan91324@aol.com writes:
Hi Cash,

The physics is what it is all about.  The VAST amount of the torque is 
transmitted along the outside of any shaft.  The center of a solid shaft 
transmits 
zero torque.  This is why driveshafts have been hollow tubes since the early 
days of automobiles. You save material, you save weight and there are cost 
savings.  Someone asked about the size of the half shafts of Corvettes of the 
same 
era thinking that the Vair half shafts owed their large size to Chevy using 
common materials.  I would have thought the same thing.  I went out to my 
garage 
and took measurements of both my '66 Corsa and spare half shafts from my '65 
Vette and was very surprised to see that the Vair shafts were almost 0.25 
Inch 
larger diameter than the Vette units.  I would have thought either the same 
or the Vair would be smaller diameter.  Imagine that.

Doc
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