Joe, many thanks. I forgot about that collapsible spacer.
Alan
Joe Curry wrote:
> Alan Lemen wrote:
> >
> > Huw, all the bits are marked for alignment. Thing is I just need to change
>the
> > one seal so the diff is on the car. The iron piece is done. I was hoping
>that
> > having it against the chassis would suffice. I am looking for something to
> > extend the leverage on the wrench.
> >
> > Anyway since they probably just torqued it up originally in the factory and
> > never had to do any alignment I have not worked out exactly why things need
>to
> > be so exact. who cares if the wheels are turned a bit more or the diff is
>on the
> > next teeth on the crown and pinion. It is a continuous thing. I have not
>figured
> > the reason. As long as the nut is torqued on right and the pinion and drive
> > plates are connected ( still don't see what the need to be aligned to the
>old
> > location either). Anyone know?
>
> I do!
>
> On later model 1500's (I don't know at which point they started), the
> pinion bearing preload is determined by that collapsible spacer. If you
> don't get the adjustment exactly correct (or darn near exact) the
> loading on the bearing will not be correct and guess what? Yep, the
> bearing will wear out prematurely.
>
> Needless to say that is a much bigger problem than a leaky pinion seal!
>
> Regards,
> Joe Curry
>
> --
> "If you can't excel with talent, triumph with effort."
> -- Dave Weinbaum in National Enquirer
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