1972 Fury Trans ID D34

[1970FuryConv]

· My Fender tag has code D34 for my transmission. My codebook says that this is a light-duty automatic transmission. My car is originally a 360-2 barrel, code E57. I assumed that this meant that my car was a 904 transmission car. I have a 727-A transmission with this odd -looking adapter for the speedo cable. My car build date on the door is 5 – 72. Part # stamped on left side of trans is 3515844. The calendar date on the left side of the transmission is 3941, which I calculate to be May 12, 1972. I can’t find a VIN number on the right side of the transmission. I’m wondering if this 727 transmission could be original to the car, or is D34 always 904? If not original, does that explain the strange looking speedo cable adapter? Thanks for your help! Ben

 

[Davea Lux]

That adapter is usually an add on to correct a speedo error. Somebody may have done a gear ratio change and could not find the appropriate driver gear for the transmission.
D34 for 1972 should indicate a standard duty 727 transmission, This code can indicate the 904 transmission, but probably not likely for this year in a C-body with the 360. The code date for the transmission would suggest that it could be consistent with the build date for the car. The serial number for the transmission should be on the transmission case at the front of the transmission just above the front corner of the pan. Often that feature is covered with grease. If there is a machined pad at that location with no numbers, that would indicate a factory "crate" replacement transmission. Typically you would be looking at a transmission that would be built something like two weeks ahead of the build date for the car, but that is not always the case. If you have a build sheet for the car, check the actual build date for the car against the transmission date.

Dave

 

[polara71]

Clearly its a 727 just by looking at the pan

 

[69CoronetRT]

Starting in ‘72, Fender tags code D34 for automatic transmission regardless of whether or not it was behind a /6, 318, 400 or 440. D34 is coded on order sheets, window stickers and broadcast sheets with no differentiation between engines.

The actual transmission the car received will be coded on the BS.

The correct interpretation of D34 for ‘72 is simply AUTOMATIC TRANSMISSION with no indication of duty.

Re build date of car: the SPD on the BS is still just that; a scheduled date, a date the construction was projected to begin, not an actual production date. Cars could be built earlier or later than the scheduled date. Original engines with assembly dates after the SPD are known to exist.

Some plants in some years may have an actual start date listed as part of the sequence number on the sheet. This seems to be true for 69 St. Louis.

 

[1970FuryConv]

Does anyone have a picture of a vin code pad on a 727?

 

[1970FuryConv]

Clearly its a 727 just by looking at the pan

I greatly respect anyone who teaches for a living, but you need to reread my original post. I was not asking what transmission I have. I was asking if the 727 is original.
Cheers from another non-religious person! Ben

 

[69CoronetRT]

Does anyone have a picture of a vin code pad on a 727?

 

[PontiacJim]

I greatly respect anyone who teaches for a living, but you need to reread my original post. I was not asking what transmission I have. I was asking if the 727 is original.
Cheers from another non-religious person! Ben

If this helps. I have a '73 same engine/trans codes. It is my understanding from what I read, that the 360 2-Bbl uses the 727. The 904 went behind the 318 and suppose the 6 cyl(?). If you try to decode the trans using some of the online stuff you will find it confusing as I did. The specs on the 1973 Plymouth Fury 360CI also calls for the higher 2,500 stall torque converter, at least in 1973. My guess is that it makes the car quicker off the line and puts the engine higher up into the torque band sooner. Takes a little gas to get it rolling if I ease into the throttle, but takes right off when I give it a good stomp to the floor.

Here is where you will get the factory specs on your car: 1972 Plymouth Fury I II III Suburban AMA Specs Brochure a653-FY16AQ | eBay and this update: https://www.ebay.com/itm/1972-Plymouth-Fury-I-II-III-AMA-Specs-Brochure-Revised-a652-JQU98Y/290881969914?hash=item43b9ea9efa:g:JzUAAOxyYSJSAm82
I have gotten this for my '73 as well as for my interest in the GTO's. Cuts through all the BS and gives you the facts on engine, trans, exhaust, rears, tires, body dimensions, etc.. He has them for other years as well.

 

[1970FuryConv]

View attachment 181096

That pad is blank. Not a letter or number anywhere on it.

 

[1970FuryConv]

If this helps. I have a '73 same engine/trans codes. It is my understanding from what I read, that the 360 2-Bbl uses the 727. The 904 went behind the 318 and suppose the 6 cyl(?). If you try to decode the trans using some of the online stuff you will find it confusing as I did. The specs on the 1973 Plymouth Fury 360CI also calls for the higher 2,500 stall torque converter, at least in 1973. My guess is that it makes the car quicker off the line and puts the engine higher up into the torque band sooner. Takes a little gas to get it rolling if I ease into the throttle, but takes right off when I give it a good stomp to the floor.

My car acts exactly the same way. It's weak on light acceleration, but with medium acceleration or pedal to the metal, it gets up and goes. Great news about the 2500 stall torque converter!

 

[Davea Lux]

That pad is blank. Not a letter or number anywhere on it.

Sometimes corrosion gets the better of the marking process. If you have cleaned up the pad and still found nothing, you may have a crate replacement transmission. Typical markings are not a complete vin: 2D160921. First digit is the year, second digit is the plant followed by the six digit sequence number. As you can see in the example provided above, the numbers are not stamped very deep and are easy to miss, especially if the unit is still in the car.

Dave

 

[1970FuryConv]

Sometimes corrosion gets the better of the marking process. If you have cleaned up the pad and still found nothing, you may have a crate replacement transmission. Typical markings are not a complete vin: 2D160921. First digit is the year, second digit is the plant followed by the six digit sequence number. As you can see in the example provided above, the numbers are not stamped very deep and are easy to miss, especially if the unit is still in the car.

Dave

I cleaned it up and found nothing. The pad on the engine block has 2D289 without the remaining 3 #s. The #s under the front of the LS head are mostly sanded off. I wonder if someone made a date matching car and then sanded off the evidence of not being numbers matching. Not a big deal.