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Old Mar 2, 2010 | 07:36 AM
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johnb3006's Avatar
johnb3006
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transmission question

What would cause the transmission in my 77 f150 to puke fluid from the breather near the tail shaft of transmission? Its a C4 tranny by the way.

It does not do it every time I drive but when it does it dumps lots of fluid.
 

Last edited by johnb3006; Mar 2, 2010 at 07:50 AM. Reason: add info
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Old Mar 5, 2010 | 06:17 PM
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Mine's doing the same thing but I'm not sure that it is a C4.


1977 F-150 Custom 4-speed manual 351.
 
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Old Mar 5, 2010 | 06:21 PM
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it could be over full,Gigger
 
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Old Mar 5, 2010 | 07:02 PM
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Originally Posted by mileswacker
Mine's doing the same thing but I'm not sure that it is a C4.


1977 F-150 Custom 4-speed manual 351.
If it's a 4 speed manual, it's not a C4. It's either a NP435 or a T18. A C4 is a three speed automatic.

johnb3006, I agree with GIGGER that it is probably over full- or the vacuum diapragm unit is bad. At least that's what my '64-'71 Chilton manual says.

A leak out the breather in a manual usually means that the vent is clogged. At least that's what happens in rear axles.
 
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