C6 question

Clutch, transmission, rear axle

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'75-4x4guy
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C6 question

Post by '75-4x4guy »

I think I need to change out the modulator valve on the tranny and I was wondering if the transmission fluid is going to dump out everywhere when I pull it out - anyone know for sure ?
Jon
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DuckRyder
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re: C6 question

Post by DuckRyder »

It won't dump out, but you will lose a little.

Be sure not to lose the pin behind it, and make sure you have the correct type (there is a "Push in" and a "Screw in")
Robert
1972 F100 Ranger XLT (445/C6/9” 3.50 Truetrac)

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re: C6 question

Post by '75-4x4guy »

Thanks for the reply , think this should cure the problem - late shifting and the tendency to drop down into 2and with a little more throttle pressure . Its this or the tranny is on the way out :cry:
Jon
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rjewkes
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re: C6 question

Post by rjewkes »

Yes do not lose the pin behind it i did and no shift even with new Mod Valve. :lol: :wink: :lol:
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re: C6 question

Post by DuckRyder »

The replacement modulators have some adjustment to them. Also check for play in the kickdown linkage (replace any worn bushings) and adjust the clearance.

I posted the procedure a few weeks back, I'm out in Lubbock so don't have acess to my literature at the moment.
Robert
1972 F100 Ranger XLT (445/C6/9” 3.50 Truetrac)

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re: C6 question

Post by '75-4x4guy »

I found that the kick down was actually rotating with the throttle so I was able to fix it by installing a spring . Now the kick down only works with the throttle at almost full ( like it should ) .
Thanks for the info though I was hoping that I didn't have to spend any money on this engine tranny combo ( 3902bbl/C6) as I (We) have a 460/c6 that is going into the truck :twisted:
The 390 will be rebuilt and will replace the 360 in my F100 .
My dad is obsessed with speed so he NEEDS the 460 8)

How do you like the Dana 44 as opposed to the 9 inch ?
The truck that 460/c6 is going into has a dana 44 rear with 2/72 gears which my dad wants to keep in order to have a nice highway cruiser .
Right now it turns about 2000 on the highway at 65 mph and the 390 that is tired and smokes a little is getting 16 miles per gallon :D .
Jon
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