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Old 04-01-2012, 11:01 AM   #1
Car'n'Guitars
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Question Transmission Info

Can someone help me understand how to exactly how a th700r4 works. Anyone have any diagrams? Or pictures? And does this picture apply to them? Thanks.
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Old 04-01-2012, 11:39 AM   #2
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Re: Transmission Info

Yes - here is an overview of how an automatic transmission works:


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Old 04-01-2012, 11:45 AM   #3
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Re: Transmission Info

Okay, so how hard are these to rebuild?
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Old 04-01-2012, 03:24 PM   #4
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Re: Transmission Info

If you have never rebuilt a trans i would suggest taking it to a pro. There's lots of ways to screw up.
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Old 04-01-2012, 03:35 PM   #5
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Re: Transmission Info

No can do can't afford it, plus I'd like to learn anyways. And if I screw up then I'll just have to deal with it.
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Old 04-01-2012, 03:49 PM   #6
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Re: Transmission Info

It's a big can of worms. Find one in a truck someones scrapping if you gotta....
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Old 04-01-2012, 03:50 PM   #7
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Re: Transmission Info

That video is a joke, right?!?!
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Old 04-01-2012, 03:51 PM   #8
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Re: Transmission Info

Get you a good manual and goodluck your gonna need it. You will also need some special tools.
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Old 04-01-2012, 03:57 PM   #9
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Re: Transmission Info

Yeah I know it will be a big undertaking but I learn quick and usually the first time. Tools I can borrow from a couple of people. But I would rather learn how to do this than take a transmission to a shop every time something is wrong. I'd rather be self-sufficient.
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Old 04-01-2012, 04:10 PM   #10
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Re: Transmission Info

Yes, the video is a joke. If I recall and Keith correct me if I'm wrong, but I think that was from Chrysler a number of years back.... I first saw it from one of my GM buddies too.. Definitely funny!

700's aren't too bad to do but if you don't have the proper tools for the lip seals, servo pin rod length check, end play and the ability to replace the bushings, I wouldn't mess with it. You're best off having someone help teach you that has done transmissions before or take it somwhere... You could also get one of the manuals from ATSG (Automatic Transmission Service Group). They walk you through the process and provide updates, etc. You can find them on Amazon, etc... Be sure you get the right book for the right year trans. 82-86 or 87-92 (93 and newer is 4L60E)
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Old 04-01-2012, 04:49 PM   #11
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Re: Transmission Info

Yeah I will get a manual, and will talk to a couple of people that can help me with it.
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Old 04-01-2012, 08:05 PM   #12
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Re: Transmission Info

You guys are all too serious...

Yah - the video's a joke (although that's my understanding of how an auto trans works). That was actually the sound test for a Rockwell training video. They guy did that all extemperaneously (made it up on the spot).

Now - relative to rebuilding auto transmissions - I can usually replace the friction material but if it gets beyond that I have to take it to a pro. There are videos out there (I have one for a TH400) that can step you through the rebuild process.

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Old 04-01-2012, 08:09 PM   #13
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Re: Transmission Info

Yeah I will look into videos too.
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Old 04-01-2012, 08:48 PM   #14
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Re: Transmission Info

Get a rebuild manual!! Parts available at http://www.bulkpart.com/

You will need special tools or make your own!! Tear one apart before trying on your own tranny.
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Old 04-01-2012, 09:21 PM   #15
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Re: Transmission Info

Yeah I will, that's a great website thanks.
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Old 04-01-2012, 09:50 PM   #16
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Re: Transmission Info

just stay out of the valve body and you will be ok if you stay to the books
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Old 04-01-2012, 10:02 PM   #17
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Re: Transmission Info

Okay thanks.
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