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Discussion Starter · #1 ·
Hi all I have a quick question. I have leaking transmission lines, I will be fixing them this weekend and I am wondering what kind of pressure the transmission is putting out ( can't find the spec anywhere) as I will be junking those crappy gm ones and making my own.
 

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I'd say hydraulic hose (3500psi) would do more than fine. They would outlast the transmission.

Actual putting out pressure? I'd say ~200psi.
 

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I think the cooler lines see somewhere around ~85psi?????? I could be wrong. Its not full main line or control main as far as I know.
 

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control main has less, usually 125psi or so I think

main line can vary, depending whether the trans is built, stock, converter locked, converter unlocked, etc...
 
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