Thanks Mark.  Rich has concurred also.  So I'll check the joints.  mcneely

---- mark drillock <mdrillock@COX.NET> wrote:
> Yes, the CV joints would be under maximum stress when you were climbing.
> The extra effort by the engine that triggered the high speed fan was put
> through the axles to the rear wheels.
>
> Mark
>
> Dave Mcneely wrote:
> > Mark, thanks.  Would the CV joint/axle be more likely to knock under the conditions I experienced?  I was prepared to think it was an engine knock simply because of the conditions.  The knock did not recur at other times, and then reappeared when I climbed another steep grade.  I'll have everything checked when I get settled in at Spokane.  Meanwhile, I won't be driving the beast all that much, anyway.  As DeanB suggested, I'll switch to a synthetic oil, too.  After all, for one or two oil changes a year, the cost is trivial compared to tearing up an engine. If it makes a difference, it is cheap insurance.  mcneely
> >
> >

--
David McNeely