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PostPosted: Mon May 11, 2020 2:05 pm 
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1 BBL (New)

Joined: Sun May 10, 2020 6:06 pm
Posts: 2
Car Model: 1984 d150 slant 6
I have a 1984 d150 with the leaning tower of power,
The transmission needs to be rebuilt but I dont know what it is
There are numbers stamped into the flange where the pan bolts to it and those numbers are:PK4058384 8279 6854, ...if anybody could tell me what transmission I have I would be very greateful. It's an automatic transmission, I think 727 but I'm not sure


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PostPosted: Mon May 11, 2020 5:04 pm 
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That's a 727 with lockup torque converter.

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PostPosted: Mon May 11, 2020 5:24 pm 
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1 BBL (New)

Joined: Sun May 10, 2020 6:06 pm
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Car Model: 1984 d150 slant 6
Ok I really appreciate the info


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PostPosted: Fri Jan 22, 2021 8:27 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2798
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
anything important beyond the initial PK number? I have same PK number but last 2 groupings are 8720 7883.
is there a chart somewhere readily accessible for all to see, that is listing of PK numbers?


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PostPosted: Fri Jan 22, 2021 8:51 pm 
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Turbo EFI

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Probably a date code 8720 http://maxwedge.com/articles/10k.php June 12th 1985


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PostPosted: Fri Jan 22, 2021 9:06 pm 
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Turbo EFI

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7883 daily production number? Could be wrong just a guess


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PostPosted: Fri Jan 22, 2021 10:00 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2798
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
ok thanks. so really good chance this is original trans to my truck.
The reason I was asking is that when cranking I am getting sounds that make me cringe an think "chipped ring gear teeth". I swapped starters and get same noise. (I have a spare Mopar starter or 3 hanging around, doesn't everybody?) The engine is coming out soon, and I will see for sure. I have a chance to but a B&M Tork master converter for a non lockup 727 brand new/never used for about half of (places like) Summit's price nearby. Being as how mine is apparently a lockup;
1. that TC won't work and
2. apparently there is something screwy inside my original TC, because it runs great ///but just like a non lockup. so the TC will need swapped out for more reasons than just a possible chipped tooth on the ring gear. looks like I'll be going after a "rebuilder's special" as those are the only ones available for a lockup trans.
how low is factory "low stall" and how high is factory "hi stall"? I will probably opt for the hi stall if I don't already have it (I'm thinking mine in there now is the low stall version)


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PostPosted: Sat Jan 23, 2021 9:38 am 
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EFI Slant 6
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Joined: Tue Mar 15, 2011 7:56 pm
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Location: Pauls Valley, OK
Car Model: 1975 Dodge D100
volaredon wrote:
is there a chart somewhere readily accessible for all to see, that is listing of PK numbers?

There’s a link on the Transmission FAQ page with the list.
viewtopic.php?f=20&t=38445

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PostPosted: Sat Jan 23, 2021 5:27 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2798
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
If you were closer I'd definitely be interested in the trans coming out of your rig.
There used to be a well known mopar parts guy/guru not far from me. About 10 years ago I remember he had a pile of NOS 727s among them at least 1 slant 6 unit, something happened and he had to move like pretty quick, I think that i landlord had sold the property where he lived. I remember going by one day and seeing all these gutted 727s, and in particular was one that looked weird to me back then being it was for a slant 6.


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PostPosted: Sun Jan 24, 2021 5:04 am 
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Turbo EFI

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PostPosted: Sun Jan 24, 2021 5:05 am 
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PostPosted: Sun Jan 24, 2021 5:06 am 
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PostPosted: Sun Jan 24, 2021 5:12 am 
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Turbo EFI

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Just a guess here but those sequential numbers might be part of the vehicle's VIN number. Sometimes that pad area on the passenger side of the tranny is blank not stamped.


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PostPosted: Sun Jan 24, 2021 5:54 am 
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Car Model: 64 Plymouth Valiant
none of your images are working

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PostPosted: Sun Jan 24, 2021 2:40 pm 
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