[Spridgets] half shafts

[Dean Hedin]

The later, stronger axle shafts have small groove cut perpendicular to the
splines.

From: "Andy Webster"
> Someone was talking about axle shafts a week or so ago...
>  specifically, that BTA-806 shafts from later models were stronger than 
> the earlier shafts.
>  Did the earlier shafts have a number other than BTA-806?
>  I seem to remember that this is the number on my half shafts..and also 
> seem to remember
> EN-17 being on there too. I have a mk2 sprite, which came with a spare 
> half shaft in the boot,
> strongly suggesting that the shaft issue had arisen for a previous owner.
>  I'd like to know how I can tell if I got me 2 o the good ones in there.
>  Andy