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Old 03-30-2012, 02:34 PM
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T-400 valve body

I have a th400 with a manual valve body that I want to make fully automatic again. I have bought a new modulator and a manual/auto valve body. Is this all I need? Do I have to worry about the electrical connection for down shift?
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Old 03-31-2012, 08:47 AM
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Quote:
Originally Posted by Magilla
I have a th400 with a manual valve body that I want to make fully automatic again. I have bought a new modulator and a manual/auto valve body. Is this all I need? Do I have to worry about the electrical connection for down shift?
Prolly not. It may (or not) depend on who's VB is in there now. I had an ATI FMVB in a T400 years ago and when I installed it, there were a few parts no longer needed to function that were to be deleted, as there is no engine braking with a FMVB. I called ATI and asked them if it was necessary to remove these parts and was told no. I went ahead and removed them (bands) as instructed, but whoever installed yours may or may not have. I have no idea what would happen if you tried to revert without the bands and such...

Russ
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Old 04-01-2012, 09:37 PM
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t 400 vb

if it has a reverse pattern vb in there it can be more involved,as stated above the frt.band and servo might have been removed also 1/2 accumulitaor rings inside reverse servo also govenor assy and tubes and direct clutch center seal mods.is this trans being torn down or is it being converted in the car back to auto
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Old 04-02-2012, 07:02 AM
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I have it out of the car now and iam just trying to make it fully auto again.:
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