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Tranny cooler lines

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Old Apr 30, 2005 | 04:56 PM
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Talking Tranny cooler lines

I'm installing a aftermarket tranny cooler on my 99. I think it is a 4r100. How do I tell which is the return line and which is the supply line to the dinky little cooler that is upfront now?

Should I route the line from tranny-new big cooler-small OEM cooler-back to tranny?

Any tips or words of advice?
 
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Old Apr 30, 2005 | 06:25 PM
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I believe the return is the rear. I think I saw a tech article about changing fluid. It should tell which is the return.
 
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Old Apr 30, 2005 | 09:43 PM
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check this thread:

https://www.ford-trucks.com/article/...nsmission.html
 
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