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12-08-2010 07:04 PM #1
Ford AOD cooling line thread size
I am installing a 1988 Ford 5.0 with an AOD in my 32 Ford. Starting to install a remote tranny cooler and looking for help on what size thread is in the tranny case. A 1/4 NPT seems to go in finger OK tight but I am not totally sure this is the correct thread to use. Any help will be appreciated.
Thanks
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12-09-2010 06:25 AM #2
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12-09-2010 06:39 AM #3
I think they had 5/16" push lock fittings from the factory, but many leaked and had a Ford OEM adapter installed later - http://www.latemodelrestoration.com/...Line-Connector
I don't recall the size, but if your 1/4npt goes in finger tight and stops before it bottoms out I would bet that is the right fitting.Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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12-09-2010 09:35 AM #4
All Ford auto's use 1/4" NPT threads in the caseIts aweful lonesome in the saddle since my horse died.
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12-09-2010 02:11 PM #5
Thanks for confirming what I suspected. As I said in my post I can thread in a 1/4 NPT fitting finger tight, did not want to tighten it in place if it was was not the correct match for the threads.
There is a huge difference between an 1/8 NPT and 1/4 NPT and no way could be confused to have been an 1/8 NPT. The threads are fine and there is no need to chase the threads, that is the last thing I would want to do and run the risk of putting crud or possibly chips in the tranny.
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12-09-2010 09:37 AM #6
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12-09-2010 10:14 AM #7
Dave W
I am now gone from this forum for now - finally have pulled the plug
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12-09-2010 10:22 AM #8
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12-09-2010 10:53 AM #9
Dave W
I am now gone from this forum for now - finally have pulled the plug
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12-14-2010 12:14 PM #10
Well I've sure gotten old too so don't worry about it! I've had two bypass surgeries, new knees, fought prostate, cancer and diabetes. I'm half blind, can't hear anything quieter than a jet engine,...
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