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Need some C6 tranny help

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Old Aug 12, 2011 | 10:23 AM
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Need some C6 tranny help

I have a 50 Ford with 1975 351W and C6 auto transmission installed and need a little help with 3 steel tubing lines coming from the transmission that were cut during removal and/or installation. There are 2 lines coming from the passenger side rear, top and bottom, and one line towards the front above the filler tube. Where do these lines go? I need to hook them up again. Ive got a Napa store for a source for the tubing and I have a tubing bender, flaring and cutter tools. Thanks!
 
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Old Aug 12, 2011 | 10:53 AM
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I have a 302 with a c6 which came out of a 78. The line from the very rear of the transmission ( this one has a rubber hose on the end) go's to the rear of the manifold and the other two go to the transmission cooler.
 
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Old Aug 12, 2011 | 10:59 AM
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Originally Posted by 3golfjack
I have a 302 with a c6 which came out of a 78. The line from the very rear of the transmission ( this one has a rubber hose on the end) go's to the rear of the manifold and the other two go to the transmission cooler.
Thanks for the info! The one with the rubber hose is the kickdown Im assuming? What if I dont have a transmission cooler? Can I just make those 2 lines loop back into each other without any harm?
 
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Old Aug 12, 2011 | 12:38 PM
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I'd get one! If it can be cooled...cool it!
 
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Old Aug 12, 2011 | 12:43 PM
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If you don't run a cooler of some type you WILL cook the trans in very short order.

The cooler is not optional under any circumstances. It is necesssary.
 
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Old Aug 12, 2011 | 01:37 PM
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Thanks for the info, I ordered one from Speedway motors.
 
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Old Aug 12, 2011 | 02:21 PM
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Originally Posted by Slarsonroy
The one with the rubber hose is the kickdown Im assuming?
Well, not exactly, the kick-down is mechanical and is on the same lever (kind of) as the manual shift arm on the other side. That hose goes to a vacuum shift modulator, it’s there, right?
 
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Old Aug 12, 2011 | 03:52 PM
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Yes, that is still there, connected to a vacuum line on the back of the manifold.
 
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Old Aug 12, 2011 | 04:41 PM
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So is this (the vacuum line one) in addition to the above mentioned three steel lines? (as per 3golfjack post)
To the best of my knowledge there are only two cooler lines, one in, one out, (you don’t need to know which is which) so I think you have too many steel lines!
 
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Old Aug 12, 2011 | 05:01 PM
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The top rear one may be a vent pipe.
The two cooler lines should be flared lines screwed into fittings in the case.

Edit

The vent is not at the rear of the trans. it is above the front cooling line fitting.
There should only be the other cooling line fitting at the rear as well as the vacuum modulator which would be connected to a steel line by a piece of vac hose.
 
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Old Aug 12, 2011 | 06:15 PM
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As stated above the 2 steel lines on the bottom passenger side are for the fluid to circulate through a cooler or the bottom of your radiator if so equipped. Then you should have a vacuum line from the modulator on the passenger side back as stated by Old F1.
On the drivers side should be a mechanical kick-down lever going from about mid bottom of transmission to the carb. Mine is just a hollow rod flattened on the ends with eyelets.
 
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Old Aug 13, 2011 | 05:08 AM
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Originally Posted by Old F1
So is this (the vacuum line one) in addition to the above mentioned three steel lines? (as per 3golfjack post)
To the best of my knowledge there are only two cooler lines, one in, one out, (you don’t need to know which is which) so I think you have too many steel lines!
Theres only 3 lines. 2 at the rear and one at the front.
 
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Old Aug 13, 2011 | 07:07 AM
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Originally Posted by Slarsonroy
Theres only 3 lines. 2 at the rear and one at the front.

Is the top rear line attached to the case with a clip and both ends not attached.
It may be the hard line that comes down from the engine and connects to the vac modulator.
 
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