That pin hole is the weak point.


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Posted by ChrisCase on Monday, November 17, 2008 at 21:43:21 :

In Reply to: Re: 4 different joint designs? posted by G8trwood on Monday, November 17, 2008 at 19:21:46 :

Plus the cross pin that retains the long pin.

A new, tight joint is no supposed to come apart. You would supposedly have to knock out the cross pin, jiggle the long pin out of the center ball and down into the shaft, then shake the other balls out. Reverse to re-assemble- slide the long pin down the hole, get all the balls into position, and jiggle the long pin into the center ball to retain it, and drive in the cross pin. Easier to do when all the grease is washed out.

That all said, I don't think I ever had an axle so new that it didn't fall right apart.

Hmmm, I wonder if the old shop manuals would have a spec for the O.D. of the knuckle? To check for spreading other than wear inside?

If you have calipers or a big mic, you might compare all of your parts? See if the one that fell apart is spread bigger?

Perhaps other readers could contribute with measurements of spares?



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