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Need Help ID'ing a 727 Transmission #2842388
11/06/20 12:19 AM
11/06/20 12:19 AM
Joined: Jan 2003
Posts: 5,784
Corpus Christi, TX
shanker Offline OP
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shanker  Offline OP
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Corpus Christi, TX
I'm working on my wife's 75 Duster 360 (real 360 car)..

The transmission (727) is stumping me because I'm not getting it to kick down like I expect it to. Lots of forums searches and reading tells me that unless it has a Part Throttle Kickdown, I can expect it not to downshift unless wide open.

I have no idea of the origins of the transmission, only that it's clean on the inside (I just dropped and changed the pan & gasket and topped it off while idling hot & in neutral).


Attached is a picture of the numbers on the drivers side housing. J2801542 3548481


I went over this list here : ( http://www.mymopar.com/downloads/transguide.pdf ) and it skips from 3516868 to 3633552
I have no idea of the transmission is original to the car and that's not even a real issue for me.

Transmission Numbers.jpg

The Federal Government has not yet learned that you cannot legislate morality 1970 Coronet R/T FF4/FF8/V85/V1G 440/Auto/3.23 1970 Coronet R/T FK5/FK5/V8W/V1W 440/Auto/3.55 1970 Super Bee TX9/TX9/V8W/N96 383/Auto/3.91 1975 Duster 360 VS29L5 Daily Driver
Re: Need Help ID'ing a 727 Transmission [Re: shanker] #2842392
11/06/20 12:25 AM
11/06/20 12:25 AM
Joined: Jan 2003
Posts: 5,784
Corpus Christi, TX
shanker Offline OP
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shanker  Offline OP
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I think I was looking at the wrong numbers.

2801542 would be a 1967 Dodge/Plymouth 318 Exc (Excluding???) Police/Taxi


The Federal Government has not yet learned that you cannot legislate morality 1970 Coronet R/T FF4/FF8/V85/V1G 440/Auto/3.23 1970 Coronet R/T FK5/FK5/V8W/V1W 440/Auto/3.55 1970 Super Bee TX9/TX9/V8W/N96 383/Auto/3.91 1975 Duster 360 VS29L5 Daily Driver
Re: Need Help ID'ing a 727 Transmission [Re: shanker] #2842715
11/06/20 08:15 PM
11/06/20 08:15 PM
Joined: Jan 2003
Posts: 16,050
Omaha Ne
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TJP Offline
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TJP  Offline
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Posts: 16,050
Omaha Ne
Originally Posted by shanker
I think I was looking at the wrong numbers.

2801542 would be a 1967 Dodge/Plymouth 318 Exc (Excluding???) Police/Taxi



The transmission (727) is stumping me because I'm not getting it to kick down like I expect it to. Lots of forums searches and reading tells me that unless it has a Part Throttle Kickdown, I can expect it not to downshift unless wide open.


I believe the part throttle KD did not arrive until sometime in the mid ? 70's . That would concur with what you've been being told and the above Information. The good news is the earlier ones can be updated. I am not sure what all that requires but it can be done in the car. Hopefully someone with a bit more knowledge on the subject will chime in beer

Last edited by TJP; 11/06/20 08:17 PM.
Re: Need Help ID'ing a 727 Transmission [Re: TJP] #2843011
11/07/20 12:40 PM
11/07/20 12:40 PM
Joined: Sep 2003
Posts: 20,614
north of coder
moparx Online content
"Butt Crack Bob"
moparx  Online Content
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Posts: 20,614
north of coder
it looks like 71 was the year. i think the /6 cars were first, as i remember mopar action did an article one time and said the /6 PTK module could be used and would retrofit to earlier valve bodies.
the pics posted are from a B&M shift kit.
hopefully, they will help.
beer

scan0172.jpgscan0174.jpg
Re: Need Help ID'ing a 727 Transmission [Re: moparx] #2843042
11/07/20 01:20 PM
11/07/20 01:20 PM
Joined: Jan 2003
Posts: 26,953
Rio Linda, CA
John_Kunkel Offline
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John_Kunkel  Offline
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Rio Linda, CA
Originally Posted by moparx
it looks like 71 was the year. i think the /6 cars were first, as i remember mopar action did an article one time and said the /6 PTK module could be used and would retrofit to earlier valve bodies.


No earlier than '67. '71 was the first year for the V8 PTK, '67 for the /6 PTK.


The INTERNET, the MISinformation superhighway
Re: Need Help ID'ing a 727 Transmission [Re: John_Kunkel] #2843048
11/07/20 01:32 PM
11/07/20 01:32 PM
Joined: Sep 2003
Posts: 20,614
north of coder
moparx Online content
"Butt Crack Bob"
moparx  Online Content
"Butt Crack Bob"

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Posts: 20,614
north of coder
thanks for setting the record straight john.
now that you mentioned it, i remember the article said the /6 was first before 71, but i don't/didn't remember just how many years before.
at least the pics show what the PTK valve looks like and where it goes.
beer







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