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MoPar 727 Guru/Expert needed: Six Pack/6BBL Question #2657411
05/21/19 03:13 AM
05/21/19 03:13 AM
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The Black Car Offline OP
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I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727.

The question I have is about the tail shaft. I was told by the guy that is rebuilding the 6BBL transmission that the tail shaft (which I believe to be original to this specific transmission) is from a C-body because it has "studs" mounted in it for the transmission mount. And the studs appear to be original. And my rebuilder says quote, "B, and E bodies did not come with studs for the transmission mount, they had bolts to mount". He has years of experience with only MoPar 727 transmissions.

My question is this: Did E and B body MoPar 6BBl transmission tail shaft mounts have bolts or studs? I have looked into this with owners and others with original 6BBL transmissions and this does seem to be true.

If so, my original Six Pack 727 seems to have come from a C-body......

Any thoughts or comments are appreciated.

Last edited by The Black Car; 05/21/19 03:16 AM.
Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657413
05/21/19 03:49 AM
05/21/19 03:49 AM
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Is it a 2892093, 727 transmission?

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: A12] #2657415
05/21/19 03:56 AM
05/21/19 03:56 AM
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The Black Car Offline OP
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No,

The part number is: 3410627 it's for a 1970 V-code dated 9/69. Apparently it's from a C-body.

I'm asking in the A12 forum,...because there are a lot of knowledgeable people here.

Last edited by The Black Car; 05/21/19 04:02 AM.
Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657416
05/21/19 04:20 AM
05/21/19 04:20 AM
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Originally Posted by The Black Car
No,

The part number is: 3410627 it's for a 1970 V-code dated 9/69. Apparently it's from a C-body.

I'm asking in the A12 forum,...because there are a lot of knowledgeable people here.


This was over on "For C-Bodies Only": (so you may be correct on what it is for............

Quote
I finally found,... after searching for a few years, the correct 1970 3410627 6BBL/SIX PACK, 727 Torqueflight for the 6BBL Fury GT. Most importantly, the transmission assembly date is 24 days before the GT's SPD, so now the complete drive train are part numbers and assembly date code matching. And the VIN pad is unstamped! A huge bonus for the car. Needless to say I'm excited for the car.




That quote is on page 11 midway down https://www.forcbodiesonly.com/mopa...n-starts-here-1970-6bbl-gt.22540/page-11

So but I'm no help when it comes to C-Body Mopars, I'm sure someone will chime in and pretty sure who they will be......... I'm betting 6bblgt will be one of them wink

Mike

(BTW, If you can read the trans number in the image below the "27" is transposed (yes a pun) and reads "72" )

GT 6BBL 727.jpgGT 6BBL 727 2.jpg
Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: A12] #2657417
05/21/19 04:33 AM
05/21/19 04:33 AM
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Is there a 3410672 trans and this trans' part number is actually correct???

GT 6BBL 727 2aa.jpg
Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: A12] #2657476
05/21/19 10:08 AM
05/21/19 10:08 AM
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the correct number for a 1970 440+6 transmission is 3410672

sorry, no help on the bolts (bolts are the "norm" for B/E/A bodies) VS. studs question shruggy but both threads are about the same car/transmission

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: 6bblgt] #2657495
05/21/19 10:56 AM
05/21/19 10:56 AM
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back in my junkyard ownership days, 1972-1984, we parted many, many chryslers, and some had bolts, some had studs. this also includes dodge trucks as well.
i do not count myself as any kind of expert on anything, but this is just my life experience.
this leads me to believe what was in the parts bin was used, but shruggy.
these vehicles, after all, were crashed, or junked for a reason, and they relatively new at the time.
beer

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: 6bblgt] #2657507
05/21/19 11:19 AM
05/21/19 11:19 AM
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Originally Posted by 6bblgt
the correct number for a 1970 440+6 transmission is 3410672

sorry, no help on the bolts (bolts are the "norm" for B/E/A bodies) VS. studs question shruggy but both threads are about the same car/transmission



Thanks Dan,

I accidentally transposed the numbers. My 727 is PN 3410672.

So, bolts are the norm for A/B/E. (because of the mount). And C-bodies have studs. (because of the mount).

My 6BBL 727 transmission has studs on the tail shaft and came from Georgia (which is where my car came from), so it appears I have a 6BBL C-body 727, that is going in an original 6BBL C body. And they are both from Georgia,.....what are the odds of that?

Cool.

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657554
05/21/19 12:43 PM
05/21/19 12:43 PM
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The trans is 49 years old. What are the chances that tail housing has been swapped? Many guys swaps parts for whatever reason.

Some mechanics install studs to help line things up. Much easier to put studs in the holes, than get the holes lined up for bolts. It is why Chrysler went to wheel studs in the late 50’s.

What is the cast in date on that Tail Housing?
What is the cast in date on the main case? What is the stamped in date on the main case? Is the stamped date before or after the cast date?

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657575
05/21/19 01:31 PM
05/21/19 01:31 PM
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The factory parts catalog verifies that the stud/nut wasn't used on the B and E-bodies.

Mount.jpg

The INTERNET, the MISinformation superhighway
Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: John_Kunkel] #2657577
05/21/19 01:45 PM
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Originally Posted by John_Kunkel
The factory parts catalog verifies that the stud/nut wasn't used on the B and E-bodies.


Thank you for taking the time on this John, I appreciate it.

When I got the 6BBL transmission I assumed it was from a Cuda or a Charger etc.....it appears that it is actually from a 6BBL C body.

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657582
05/21/19 01:59 PM
05/21/19 01:59 PM
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I'd talk to who you got the transmission from ****** if any info is known about the engine that used to reside in front of it work

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: The Black Car] #2657624
05/21/19 04:19 PM
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Originally Posted by The Black Car
I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727......

Any thoughts or comments are appreciated.


Since there is no VIN on this transmission case then there is no way to tell what it came out of. Is the case restamped with the Six pack part number? Why does it have the six pack part number with no VIN?

Was the tail housing swapped on to this trans? Who will ever know either way?

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: NANKET] #2657730
05/21/19 08:08 PM
05/21/19 08:08 PM
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Originally Posted by NANKET
Originally Posted by The Black Car
I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727......

Any thoughts or comments are appreciated.


Since there is no VIN on this transmission case then there is no way to tell what it came out of. Is the case restamped with the Six pack part number? Why does it have the six pack part number with no VIN?



This transmission was the weak link in the drivetrain.

I have a 70 Challenger R/T 440 SIXPACK automatic with Super High Performance axle package.

The original transmission failed at 30K - was rebuilt

It failed again at 60K - was rebuilt

It failed again at 89K - was replaced

I'm sure many others had it fail super early and got a replacement

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: Morty426] #2657786
05/21/19 10:37 PM
05/21/19 10:37 PM
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Originally Posted by Morty426
Originally Posted by NANKET
Originally Posted by The Black Car
I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727......

Any thoughts or comments are appreciated.


Since there is no VIN on this transmission case then there is no way to tell what it came out of. Is the case restamped with the Six pack part number? Why does it have the six pack part number with no VIN?



This transmission was the weak link in the drivetrain.

I have a 70 Challenger R/T 440 SIXPACK automatic with Super High Performance axle package.

The original transmission failed at 30K - was rebuilt

It failed again at 60K - was rebuilt

It failed again at 89K - was replaced

I'm sure many others had it fail super early and got a replacement




I've run a"lot" of transmissions very hard over the last 50 yrs,cars that were street driven and cars that were not,never had anything close to that ! shruggy

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: 62maxwgn] #2657838
05/22/19 01:03 AM
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Originally Posted by 62maxwgn
Originally Posted by Morty426
Originally Posted by NANKET
Originally Posted by The Black Car
I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727......

Any thoughts or comments are appreciated.


Since there is no VIN on this transmission case then there is no way to tell what it came out of. Is the case restamped with the Six pack part number? Why does it have the six pack part number with no VIN?



This transmission was the weak link in the drivetrain.

I have a 70 Challenger R/T 440 SIXPACK automatic with Super High Performance axle package.

The original transmission failed at 30K - was rebuilt

It failed again at 60K - was rebuilt

It failed again at 89K - was replaced

I'm sure many others had it fail super early and got a replacement




I've run a"lot" of transmissions very hard over the last 50 yrs,cars that were street driven and cars that were not,never had anything close to that ! shruggy


Sounds like he needed a different trans shop. LOL

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: 62maxwgn] #2657842
05/22/19 02:04 AM
05/22/19 02:04 AM
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Originally Posted by 62maxwgn
Originally Posted by Morty426
Originally Posted by NANKET
Originally Posted by The Black Car
I have a Factory correct, I.E. part number correct, Six Pack/ 6BBL 727 Torqueflight transmission, that is date coded correct for the SPD of my car.

It has NO VIN stamped on the pad, but does have the correct Six Pack/6BBL PK Part numbers for a 6BBL 727......

Any thoughts or comments are appreciated.


Since there is no VIN on this transmission case then there is no way to tell what it came out of. Is the case restamped with the Six pack part number? Why does it have the six pack part number with no VIN?



This transmission was the weak link in the drivetrain.

I have a 70 Challenger R/T 440 SIXPACK automatic with Super High Performance axle package.

The original transmission failed at 30K - was rebuilt

It failed again at 60K - was rebuilt

It failed again at 89K - was replaced

I'm sure many others had it fail super early and got a replacement




I've run a"lot" of transmissions very hard over the last 50 yrs,cars that were street driven and cars that were not,never had anything close to that ! shruggy


I know what you are trying to say but I have THREE 70 V code automatics and all THREE are missing their original transmissions.

I have searched for 672 transmissions for 30 years - they pop up very rarely.

The STOCK 672 just did not cut it.

I've abused my share of 727s and it is best automatic IMO but for some reason the 672 got toasted quickly

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: Morty426] #2657988
05/22/19 12:47 PM
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FWIW, the 672 is identical internally to the Hemi 671 except for the governor.


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Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: John_Kunkel] #2658146
05/22/19 07:18 PM
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Originally Posted by John_Kunkel
FWIW, the 672 is identical internally to the Hemi 671 except for the governor.


Good to know - I just picked up a 671

Re: MoPar 727 Guru/Expert needed: Six Pack/6BBL Question [Re: Morty426] #2658156
05/22/19 07:43 PM
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Do the last 3 digits of the part# designate Hemi 671 & 6pk 672 for all years or only 70.

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