31plymouth Posted January 7, 2018 Share Posted January 7, 2018 Does anyone know if a different transmission will fit a 31 Plymouth. Dodge , DeSoto ,Chrysler? others? Still looking for a 31 Spur/straight toothed cluster gear. Link to comment Share on other sites More sharing options...
ArticiferTom Posted January 7, 2018 Share Posted January 7, 2018 need number to run . Link to comment Share on other sites More sharing options...
31plymouth Posted January 8, 2018 Author Share Posted January 8, 2018 Will look up in my Plymouth master parts list tomorrow.....Thanks Link to comment Share on other sites More sharing options...
broker-len Posted January 8, 2018 Share Posted January 8, 2018 Since PA had floating power the motor mounts------------------engine and trans were unique to that model PB trans may work but no others-------what is wrong with gears ????-----------------------------------I do have a PB trans where are you ???? E mail me at bobnroman@yahoo.com Link to comment Share on other sites More sharing options...
31plymouth Posted January 9, 2018 Author Share Posted January 9, 2018 My original trans had straight gears, not helical like the later PA and PB. It broke a tooth on the cluster gear . I had a spare trans sitting on the shelf for 25 years and when I examined it the same gear (high) had a chipped tooth !. I have a 32 trans in the car now but I wish I could have a spare and also find a cluster gear to fix one of the others Link to comment Share on other sites More sharing options...
TomP Posted January 27, 2018 Share Posted January 27, 2018 I think it's the third gear that usually goes and they do pop up from time to time on eBay but usually I'm interested in 33-41. Link to comment Share on other sites More sharing options...
Spinneyhill Posted January 28, 2018 Share Posted January 28, 2018 By "cluster gear", you mean the countershaft gear? Ply33.com should have a part number, but seems to have a problem. Tod gives a number 377126 for the countershaft gear assembly for PA & PB; that is the number for the countershaft (not the gear) in some Dodges, specifically DD, DC, DH, DI, DJ, DG, DL, DK, DM, but not all of each of these models. It looks like this might be the number of a spur cut gear for easy shift - freewheeling boxes. Link to comment Share on other sites More sharing options...
31plymouth Posted February 8, 2018 Author Share Posted February 8, 2018 (edited) Yes, I have learned that the countershaft gear is also called a cluster gear. My PA is an earlier one with the spur gears. Per the Master parts book, the countershaft gear for my PA (serial number 1593203) is part number 391220 Last item on left hand page 21-11 of master parts book Edited February 9, 2018 by 31plymouth spelling (see edit history) Link to comment Share on other sites More sharing options...
Spinneyhill Posted February 25, 2018 Share Posted February 25, 2018 #391220 is used on some DD, DI, DH Dodges. It is called the "Countershaft gear assembly" so may include other parts like the bearings, spacer(s), thrust washer and shaft. The cars with the spur gear seem to have had "easy shift with freewheeling". On the DD, it was transmission #377657 and it looks like most of the DH Dodges with this gear had that transmission too. It is pretty hard to navigate the way through it all. Link to comment Share on other sites More sharing options...
31plymouth Posted March 2, 2018 Author Share Posted March 2, 2018 Thanks for the Dodge info. I will post a request in the Dodge section with that information. Link to comment Share on other sites More sharing options...
32plywood Posted April 14, 2018 Share Posted April 14, 2018 transmission for 31 plymouth for sale on the HAMB --parts for sale listed for 50.00 ----shulls@theofficenet.com Link to comment Share on other sites More sharing options...
31plymouth Posted April 14, 2018 Author Share Posted April 14, 2018 Thanks, will try to find it Link to comment Share on other sites More sharing options...
keiser31 Posted April 14, 2018 Share Posted April 14, 2018 City: Eavns State: Washington Price: 50.00 for sale a 1931 Plymouth trans 50.00 + shipping email mw at shulls@theofficenet.com are call are text me at 509-680-0874 Richard https://www.jalopyjournal.com/forum/threads/1931-plymouth-3-speed-trans.1104096/ Link to comment Share on other sites More sharing options...
DFeeney Posted December 9, 2018 Share Posted December 9, 2018 On 1/7/2018 at 5:09 PM, 31plymouth said: Does anyone know if a different transmission will fit a 31 Plymouth. Dodge , DeSoto ,Chrysler? others? Still looking for a 31 Spur/straight toothed cluster gear. Hello, If you are still looking for a PA trans i have a good used one for $150. Don Link to comment Share on other sites More sharing options...
Rich in Fla. Posted September 5, 2019 Share Posted September 5, 2019 On 2/8/2018 at 4:30 PM, 31plymouth said: Yes, I have learned that the countershaft gear is also called a cluster gear. My PA is an earlier one with the spur gears. Per the Master parts book, the countershaft gear for my PA (serial number 1593203) is part number 391220 Last item on left hand page 21-11 of master parts book Hi. I am also looking for a cluster-gear (or whole trans) for my 1931 Chrysler CM-6. Any info please text 954-336-0027. Thanx. Link to comment Share on other sites More sharing options...
Spinneyhill Posted September 5, 2019 Share Posted September 5, 2019 1 hour ago, Rich in Fla. said: Hi. I am also looking for a cluster-gear (or whole trans) for my 1931 Chrysler CM-6. Any info please text 954-336-0027. Thanx. And is that the same as a PA Plymouth gear? Link to comment Share on other sites More sharing options...
Rich in Fla. Posted September 5, 2019 Share Posted September 5, 2019 On 1/8/2018 at 8:18 PM, 31plymouth said: My original trans had straight gears, not helical like the later PA and PB. It broke a tooth on the cluster gear . I had a spare trans sitting on the shelf for 25 years and when I examined it the same gear (high) had a chipped tooth !. I have a 32 trans in the car now but I wish I could have a spare and also find a cluster gear to fix one of the others Hi. Hope you see this almost 2 years later !! Do you know what years trans would fit a 1931 mopar 6 cylinder !?!? I have a '31 Chrysler CM-6. Link to comment Share on other sites More sharing options...
DFeeney Posted September 6, 2019 Share Posted September 6, 2019 On 1/7/2018 at 5:09 PM, 31plymouth said: Does anyone know if a different transmission will fit a 31 Plymouth. Dodge , DeSoto ,Chrysler? others? Still looking for a 31 Spur/straight toothed cluster gear. What are the numbers on your case. I have some 31 transmissions. Don Link to comment Share on other sites More sharing options...
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