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'74 727 rebuild

Old 03-02-2019, 10:59 AM
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'74 727 rebuild

hi guys,

my '74 (400 cui) newport has started to leak transmission fluid.
I thought, it might be a good idea, to not just reseal it.
Do you guys have some recommendations, what I should do/buy to improve performance and lifespan of the transmission?

Someone changed the bands and the clutches about 10 years ago. But nothing else to improve the transmission.

If something is unclear, I will try to explain. English is not my mothers tongue.

thanks for your help.
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Old 03-03-2019, 08:55 AM
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A good overhaul kit and add a TransGo shift improver kit should help it. Replace the Convertor while you are at it.
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Old 03-03-2019, 09:55 AM
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If you have not rebuilt a transmission before, its not too difficult. Summit sells a book (HPB-HP1399) that give instruction to rebuild and modify a 727. Its not a job you want to do in the driveway. Work in a clean area.
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Old 03-04-2019, 01:34 PM
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Thank you very much for your advice guys.

I actually own that book. I bought it quite some time ago. Nice to know, that I chose the right one to learn about my transmission.

Should I use the transgo tf-1 or the shift kit?
Can you recommend a good overhaul kit.
I often buy from rockauto and ebay because I live outside the US and importing from them is pretty easy.

Thank you guys.
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Old 03-05-2019, 08:13 PM
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Rock Auto Master Kit should be fine..... I would just get the shift improver kit. Don't go making it shift to hard, it will just cause other maintance issues.
Stay with the TF-1.... Like a Tow-N-Go..
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