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09-14-2017, 05:53 PM
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#1 |
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Registered User
Join Date: Sep 2013
Location: Pleasant Ridge, MI
Posts: 285
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At wits end--need help on fitting for 4L60E cooler line
I am trying to convert cooler lines to all braided line up to the cooler in the radiator or maybe an external cooler. All the literature and the product lists for the fittings to convert the standard quick connect cooler lines on a brand new 4L60E to AN fittings say that the thread size in the case of the transmission is 1/4 NPS, with an o-ring. Russell and ICT Billet fittings appear to indeed be 1/4 NPS. But, that size is too small a thread size for my transmission. The photo shows the difference in size and my problem--the original fitting on the left is a bit bigger thread size, but it does not appear to be a full size larger (that is, 3/8 NPS). The fitting on the right is an ICT Billet product. It falls right into the transmission hole. Has anybody ever run across this issue? If so, what have you done?
Thanks, Phil Last edited by flipper58; 09-14-2017 at 06:00 PM. |
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09-14-2017, 07:58 PM
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#2 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: At wits end--need help on fitting for 4L60E cooler line
Beginning 11-29-2007.....All new production 4L60E/4L70E transmission have a new cooler fitting thread size 9/16-18
Give Sweet Performance a call.....(714) 223-9322, They can make some for you. |
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09-14-2017, 08:30 PM
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#3 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,539
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Re: At wits end--need help on fitting for 4L60E cooler line
Hey Cline! Long time bud! Holler at me sometime!
__________________
Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684  support our troops! |
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09-15-2017, 08:13 AM
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#4 | |
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Registered User
Join Date: Sep 2013
Location: Pleasant Ridge, MI
Posts: 285
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Re: At wits end--need help on fitting for 4L60E cooler line
Quote:
Phil |
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09-16-2017, 10:23 PM
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#5 |
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Registered User
Join Date: Jan 2011
Location: Edinburg, Texas.
Posts: 194
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Re: At wits end--need help on fitting for 4L60E cooler line
Cline, thank you as usual. I also had this problem with a 4l60e-4l65e swap and used junk yard lines to plug into the trans and then a couple flare fitting adapters to go from the larger line to the smaller size on my truck. But I don't like the setup. PITA!!
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09-20-2017, 01:49 PM
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#6 |
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Registered User
Join Date: Sep 2013
Location: Pleasant Ridge, MI
Posts: 285
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Re: At wits end--need help on fitting for 4L60E cooler line
A bit of an update. Unfortunately, the banjo style one did not work in my application because the 9/16-18 end bottomed out before sealing. Too bad as the banjo at a 90 degree angle fit snugly against the trans. So, I went with a straight fitting I tracked down from Earl's. Should have it tomorrow to confirm fit.
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