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Front pump seal replacement in 700R4.

This is a discussion on Front pump seal replacement in 700R4. within the Technical / Maintenance forums, part of the General Discussion category; Hey guys. I need to replace the front pump seal in my 700R4 trans and was wondering how hard it ...

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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Front pump seal replacement in 700R4.


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    Hey guys. I need to replace the front pump seal in my 700R4 trans and was wondering how hard it is to do and what the process in doin it is.
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    Registered User jrl91rs's Avatar
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    Re: Front pump seal replacement in 700R4.

    It's a pain, You pretty much gotta pull the tranny so that you can get the torque converter out. After that you pull the old seal, install the new one with the retainer clip, then put it all back in.

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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Re: Front pump seal replacement in 700R4.

    Well lucky for me the trans is already out of the truck. Haha. Where is the seal located on the trans? Where can I find a step by step for doing this seal?
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    Registered User jrl91rs's Avatar
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    Re: Front pump seal replacement in 700R4.

    Was it leaking on to the ground? If you are talking about the input shaft seal it's right behind the torque converter. I hear a lot of people call that the front pump seal. Other than that, I can't help you cuz I don't know shizz about the internals of the transmission.

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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Re: Front pump seal replacement in 700R4.

    Yeah it may be the same thing. Not too sure to be honest. But yeah it was hemoraging fluid everywhere when the truck was running.
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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Re: Front pump seal replacement in 700R4.

    *bump* Anyone know where I can find a diagram of how to change the front pump seal in my trans?
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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Re: Front pump seal replacement in 700R4.

    Ok I got the trans back from my buddies place and I also have the new seal. Anyone know where I can find a step by step procedure to get this fixed?
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    Livin' truck by truck Muddin_Maniac89's Avatar
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    Re: Front pump seal replacement in 700R4.

    *bump*. Anyone?
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