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Old 01-28-2023, 02:13 AM   #3
EVRLET
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Join Date: Aug 2015
Location: Las Vegas NV
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Re: 1990 th400 cooling line fitting questions

Yes, however the 4L80 has a long and short fitting. Whereas the 4l60 has two short fittings. The thread pitch is all the same 1/4” NPS for 350/400/700/4l60/4l80
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