looks like chromoly 80 birfs on the way

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Oh, ok.

According to the graph above, the shaft itself broke, not the joint. Aren't the actual shafts on the birfs the same size from mini-truck to 80? I know the bells are bigger, but are the shafts bigger?

Ary
 
NW-sickboy said:
I forgot to post that as far as i know these birfs will not be great replacetments for DD... mainly trail rigs or rigs that see fewer miles

This aren't going to be treated (80s) if I am understanding him correctly. If they don't treat them they don't lose their rigidity and wear quicker.
 
ginericfj80 said:
This aren't going to be treated (80s) if I am understanding him correctly. If they don't treat them they don't lose their rigidity and wear quicker.

Now they come out with good replacement birf for DD after I just bought OEM. :flipoff2: What kind of guarantee are they going to have...anyone know?
 
Chris,

Where did this graph come from - I'm curious who's birfield this OEM unit is, the source of the tests, etc and some others are too. I'm somewhat of a stickler on data and this would be useful. Obviously it's not your graph, so I'll check with the source. Thanks.
 
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