Re: what holds the driveshaft nut tight?

[Don Hoefer <hoefer@eng.pko.dec.com>]

Sam Nicholls wrote:
> 
> I recently replaced the passenger side front bearing and hub on
> an '86 4000S (1.8L).  I followed the instructions in my Haynes
> manual and torqued the driveshaft nut to approximately 170 ft*lbs.
> I'm wondering what keeps the driveshaft nut from coming loose?
> There is no cotter pin to keep it in place like on other FWD cars
> I have seen.
> 
> thanks,
> -sam

Sam,

I hope that you replaced the nut when you replaced the bearing.
If you look at it closely you will notice that it is crimped
slightly out of round.  This is what holds it.  It can only be
used once.  I know the hard way.  If it comes loose the bearing
will be wrecked.  The nuts are about $1.00 at foreign auto parts
stores.

Don Hoefer
'82 Coupe