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Old 01-02-2006, 09:40 PM
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TH-350 Cooling Lines Flaring


I am about to do flaring on 5/16 steel lines for my TH-350 trans to my new external trans cooler. Do I use a single or double flaring tool for this job? I know brake lines are double - what about trans lines? What is a typical pressure (psi) in a TH-350 trans cooling line under normal operating conditions?

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Old 01-02-2006, 09:46 PM
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Single is fine.
I use steel brake lines joined with brass.
Less than 20 psi. Remember lots of people used fuel line for trans hose for years and never blew any lines up.
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Old 01-02-2006, 09:53 PM
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I also use preformed, preflared brake lines from the auto parts stores for fuel and trans cooler lines, it's real cheap.

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