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Thread: 1356 Doubler, It's like Bigfoot

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  1. #7
    Yo soy tu papa! Doug Krebs's Avatar
    Join Date
    Apr 2002
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    5,540
    My NP241 was only hardened on the surface. I believe most of these shafts are induction hardened.

    I chopped a slice off with the EDM and then did hardness tests across the cross section...

    Edit: other than lining the cases up, the intermediate shaft is the only real big pain in the ass.

    Doesn't your dad have a dividing head? That's the real key for splining.
    Last edited by Doug Krebs; 09-01-2009 at 10:44 PM.
    1988 Blazer...RIP

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