stakeside

Early Dodge Bros truck transmissions

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Posted (edited)
  • While replacing the bearing on my 1929 3/4 ton truck I noticed what I believe is a date code. The code was 6 and a 31.

The trans is a T71-1A and it appears the trans was not the original to my truck.

 

7664E0AD-BE22-4373-8369-89735D285053.thumb.jpeg.3b3265f321adb9bdf2838af8fd5e48c5.jpeg

 

The following is picture is from my owners manual.

 

2E903573-4C5C-4DAB-AE67-B23EBC797BF2.thumb.jpeg.6b93f16a1ce7a4b19ebfee17bbcbf388.jpeg

 

and this is from the ‘MASTER PARTS” book.

 

CB435050-902E-4507-9B05-D3AA82112936.thumb.jpeg.41385fb023cd55fb216232aeb6a1cf35.jpeg

 

I believe this to be the T71-1A trans that I have.

 

The Master Parts book only list part numbers and type “Heavy Duty” or “Hi-Flex trans.

Anyone have any information on these early trans? What trans are you using on your early truck? E

 

Edited by stakeside
E (see edit history)

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It is an interesting idea to bolt the filler entry on the side in a separate plate. I wonder if that opening was intended to allow for a PTO or something? Or for 4 wheel drive? The picture from your manual shows the filler cap in the inset, but it doesn't look like it is in a bolted on plate.

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What is really interesting is that the contents of that gearbox look pretty much the same as that in the Dodge car master parts list for DA-DC-DD-DE-DG-DH-DI. The DC-DD gearbox has nothing cast into the outside of it, though.

 

I wonder if any of the internal parts are the same? Until we know what that gearbox is original to, it is pretty difficult to compare without parts in hand.

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Here is the rear main bearing assembly. This definitely matches the Plate 88 picture which is a diagram of the T71-1A trans.

 

F0B006C2-2C62-4E52-B024-DECEDCEC2E96.thumb.jpeg.c3450a4a007ca0f236b4d146b07fe0a0.jpeg

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Posted (edited)

The plate on the side with 4 bolts has the oil filler nut. Not a PTO on mine.

Edited by stakeside
E (see edit history)

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what would you guess the price of a stock 3 speed transmission out of a 33 dodge would sell for? 

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According to Hollanders anniversary edition dated 1938

 

T141 transmission case is for the following:

 

Dodge Brothers Cars:

1927-1928 model 124 & 128

1928 Victory

1928 Standard 6

 

Dodge Brothers Trucks:

1927-1928 1/2 ton (SD model? it doesn't say what model but I'm sure it's the SD)

1928-1929  SE SEW & SEF 1/2 tons

1928-1929 DE DEW & DEF 3/4 tons

 

T71-1A transmission case is for:

late 1929 into 1930 model DA120 

1930-1931 U124 and DA124

 

You may need other 120" instruction books and parts lists books to sort it out if you are putting together one truck using two different frames as you are doing. I believe this along with a build card for both frames will give you all your answers you're looking for. Hope this helps.


 

 

 

 

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Thanks for summary Dave. 

Does anybody have a side view of the T 141. I would like to see the comparison. I believe the side view in my DB owners manual to be a passenger car trans or is it the T 141.

Note the shape of the bell housing. It is flat on the bottom.

F1F05A27-B15D-4016-881E-F29DB1F3995A.thumb.jpeg.19479f33daf2c239d05abf1b42524d14.jpeg

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If no response here you may want to create another thread in this DB section asking the DB passenger car guys if they recognize it or if they would be willing to share scans of their parts books.

 

Maybe word the thread something like "DB Passenger Car Transmission ID HELP NEEDED" and I'd bet you'd have better success. Just my opinion...

I say that because I often wonder if car guys on here that see the word "truck" in the heading may just pass on by and not read it. 

I seemed to recall a guy named Rich on here that has a 124 or 128.. maybe he'll see it and chime in. He was very willing to share scans from his parts list book in regards to the 1/2 ton truck that I had previously. 

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I don’t think it’s any help but just in case this is what’s in the series 128/129 parts book:

9B7EA41F-8087-4937-B2DB-5B7369B72F0D.thumb.jpeg.fcbbbb155edf2f23e995ad74608ffe1f.jpeg

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Posted (edited)
4 hours ago, RichBad said:

I don’t think it’s any help but just in case this is what’s in the series 128/129 parts book:

 

 

Rich, curious to know if your case is stamped T141 on your 128 ? Or, Do you have any photos of your case from a side view showing the numbers ?

Looks very similar except for the top cap.

Edited by 30DodgePanel (see edit history)

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10 hours ago, 30DodgePanel said:

 

Rich, curious to know if your case is stamped T141 on your 128 ? Or, Do you have any photos of your case from a side view showing the numbers ?

Looks very similar except for the top cap.

I can have a look tonight - where would it be stamped?

Some photos are available here (but I couldn't see a stamping)

 

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Posted (edited)
On 6/11/2019 at 6:34 PM, RichBad said:

I can have a look tonight - where would it be stamped?

 

 

Not sure where it would be on the T141. My guess would be on one of the sides somewhere similar to the original photo in post #1 of the T71 tranny.

 

Thanks for your input Rich. Helpful as always 👍

Edited by 30DodgePanel (see edit history)

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Ok, checked my case and couldn’t see T141 or anything similar. Couple of numbers but probably casting numbers?

6D7E8A5B-B683-4268-B922-987F97D315FB.thumb.jpeg.b57d14423427062200d2d2bb20f5679c.jpeg

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