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What trans do I have, 2/3 slipping

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tweeder View Drop Down
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Post Options Post Options   Quote tweeder Quote  Post ReplyReply Direct Link To This Post Topic: What trans do I have, 2/3 slipping
    Posted: 12 August 2012 at 2:01pm
I found these markings. 866 4l80 CFD 910 hydra-matic. Wht tranny is
this and what'd it come from?
86 GT Convertable 3800
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Capt Fiero View Drop Down
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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2012 at 5:05pm
Doing some Bing Searches assuming its a 4spd Auto, you have a 4T60 trans.  I don't belive you have a 4T80 as that is a MONSTER of a trans, at I belive nearly 500lbs The 4T60's were used in most 3800 powered cars and the 4T65 HD were used on stock Supercharged cars.
Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.
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tweeder View Drop Down
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Post Options Post Options   Quote tweeder Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2012 at 5:20pm
Originally posted by Capt Fiero Capt Fiero wrote:

Doing some Bing Searches assuming its a 4spd
Auto, you have a 4T60 trans.  I don't belive you have a 4T80 as that is
a MONSTER of a trans, at I belive nearly 500lbs The 4T60's were used
in most 3800 powered cars and the 4T65 HD were used on stock
Supercharged cars.


It's a 3 speed
86 GT Convertable 3800
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tweeder View Drop Down
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Post Options Post Options   Quote tweeder Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2012 at 11:56am
It's no longer slipping, the tv cable needed adjusting. The po never had
it hooked up.
86 GT Convertable 3800
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