5LikesThread: 45* vs 37* flares
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03-26-2016 10:11 AM #1
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- Join Date
- Feb 2007
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- Vidalia
- Car Year, Make, Model: 1946 Ford Coupe, 1962 Austin Healey 3000
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Most trans cooler lines on older American cars are inverted flare fittings. The 45* is correct for that. You will need to double flare the lines for a proper connection. The flare tool will have a set of double flare inserts that create an upset in the end of the tubing that is then rolled back into itself to make the "double flare".
The 37* is for AN type fittings. The AN is much easier to do IMO and is made to be disconnected many times without damage. I use them for just about everything now, but still need the old double flares, too.
Yes, the difference is critical.
Post a pic of your cooler fittings so that we can know for sure what you have.Last edited by Hotrod46; 03-26-2016 at 10:13 AM.
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Yep. It’s pretty sad.
Dead!