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Old 01-28-2003, 10:29 AM
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Question Whats the magic #

I am looking for a 700R4 tranny for my S-10, and have been told that before a certain year they were garbage, I believe it was 1986 or 1987. I could be wrong though. I have found a 700R4 out of a 1989 Chevy, its rebuilt and seems pretty cheap. So, what is the year. Thanks,


bonuts

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Old 01-28-2003, 11:35 AM
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i heard the 1984 and 1985 models were junk, i even have a 1984 model 700r4 and it didnt hold up i am now running a 1989 model 700r4 and have no problems with it. hope this helped i have the stage 3 shift kit in it and a manuel valve body, they say it can hold 650-700 horses now.
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Old 01-28-2003, 11:36 AM
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**had a 1984, i dont have it no more couldnt salvage no parts**
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Old 01-28-2003, 03:29 PM
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the major revisions came in 1988, anything after that is the better trans.
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Old 01-28-2003, 04:01 PM
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Cool

Mid 1987 was the introduction of the revised 700 internal parts, valve body.

1988 and up you are sure to have the good stuff unless someone has changed the internals.

I had 2 units last year that were 1990 or newer and both had EARLY internal hard parts........ 7 vane pumps , early FWD sprags, etc.

Obviously the units had blown up and some tranny guy somewhere had installed parts that were laying around.

Tony
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Old 02-01-2003, 10:10 PM
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Cool thanks for the help, I did get the tranny, and am having it checked out, because I don't feel like pulling the 350 out of my S-10 again because the tranny is no good. I'm also getting the guy to give me a price on work, like a full manual valve body done. Any suggestions on high-stall torque converter? Its just a warmed up 350, flat tops, camel hump heads, aluminum intake and a 650 holley. I was thinking 2200RPM-to-maybe even a 2800RPM one. It is a street driven truck, and from time to time the girlfriend takes it out, so its got to be driveable. I also am going to be running a 4.10 posi rear end (had it in the truck before but just too hard on fuel, when I hit the highway) so I took it out. Thanks for the help.


bonuts
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Old 02-02-2003, 01:00 AM
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Are all years of the 700R4 computerized? Or just earlier or later ones? I know that you can buy a wiring "loop" to avoid slipping in/out of OD to put a 700R4 in a non-computerized car.
The reason that I am asking is because I would like to run an O/D tranny in my Chevelle since I am having no luck finding a 4-gear and keeping both arms. If the 700R4 is going to be a complete pain then I'll have to go with the ol' standby TH350.
Later,
WEIMER
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Old 02-02-2003, 02:00 AM
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none of the 700īs are computerized, the computerized 700 is called 4L60E..
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