xfer case leak - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by mckey73, this thread has received 6 replies and been viewed 809 times.

 
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post #1 of 7 (permalink) Old 04-06-2008, 06:01 AM Thread Starter
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xfer case leak

I have had some serious atf leaking issues on my driveway lately. Seems that there is a new nickel plated slip-yoke to remedy the problem, I will replace all 3 u-joints as well. Too bad there isn't a slip-yoke eliminator for the np 261-hdx. C'mon driveline guys!
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post #2 of 7 (permalink) Old 04-06-2008, 12:44 PM
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Is it leaking from the rear seal area or is it the pinhole leaks common to those cases (pump rub)?

New nickel plated yoke? To combat the clunk? Thought that was only the 1500's that had that yoke.
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post #3 of 7 (permalink) Old 04-06-2008, 06:36 PM Thread Starter
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I've done the pump upgrade, replaced the rear seal twice and finally found the (other) leak. There is a new slip yoke for the 3/4 and 1 tons, gm part #89058880, supposed to be for the clunk. I have never been a big fan of the slip yoke design.
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post #4 of 7 (permalink) Old 04-06-2008, 06:40 PM Thread Starter
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Attachment 17139

Here is exactly where the leak is coming from, seems kinda strange to me. :shrug:
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post #5 of 7 (permalink) Old 04-06-2008, 11:41 PM
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You got me on the leak.
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post #6 of 7 (permalink) Old 04-07-2008, 11:12 PM
 
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Seems to me when I used to work at the Chev dealer there was n oring if I remember right that is inside the slip yoke that used to go out. Not too sure it has been a while.
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post #7 of 7 (permalink) Old 04-08-2008, 03:12 PM Thread Starter
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The word I got was to remove the yoke and weld it. Let you know how it goes when I get around to it.
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