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700R4 tech question

 
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Gabe
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Joined: 28 Apr 2007
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PostPosted: Sat Apr 28, 2007 7:56 pm    Post subject: 700R4 tech question Reply with quote

I have a 700R4 with an electronic spedometer setting on it what do I do to switch it over to a cable type which is what my car uses.
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Big Dave
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Joined: 04 Dec 2005
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Location: Tampa Florida
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PostPosted: Sun Apr 29, 2007 8:46 am    Post subject: Reply with quote

You will have to remove the tail-housing and the reluctors and everything else you find in the way and then install a plastic drive gear (color coded to match your final gear ratio) onto the shaft and then put everything back onto the out put shaft you took off (because the computer uses that info to lock-up the converter) then install a tail shaft off of a 700R4 tranny that already has a mechanical speedo out put. Usually when they get to an electronic speedometer they start to call them a 4L60E because it is fully controlled by a computer instead of shifting hydraulically. Are you sure you have a 700R4 and not a 4L60? (1982 thru 1992 700R4, 1993 and up 4L60E) They are the same transmission except for the computer control part (they can be identified by the large electrical connector just behind the 2-4 servo).

You want a 1989 to 1992 700R4 which will not have the three pressure taps visible on the passenger side of the case, and before they swapped over to the 4L60E unless you are putting it in a computer controlled 1993 and up car.


Big Dave
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