54 Plymouth R10 rebuild?

[59bisquik]

I have a 54 Plymouth R10 that needs a rebuild. Some of the gear teeth in the tranny are chipped and broken. I have searched without alot of luck. 1) What is the maker and model of the transmission? 2) Where is the best place for an overhaul kit? 3) What parts do I need for the faster 2nd gear?

 

I am currently debating keeping this tranny or swapping to an OD automatic. But would prefer to keep this for the originality aspect. Thanks.

[JohnS48plm]

The T10 is a Borg  Warner overdrive. I got my rebuild parts from Northwest Transmission. I don't have the address and phone number by the computer but can look it up if needed. 

[59bisquik]

Thanks for the help. I am still looking at all my options but will add them to the list.

 

 

[kencombs]

A caution when looking for parts:  Don't refer to the OD as a trans id.  That confuses things, what you want is the trans parts, the R10 designation is only the OD.  I assume the T10 in the earlier response was a typo, as that is a four speed trans.

 

I wish I could help with more trans info.  All I can find in my Hollander is there is a lot of parts interchange in all Mopar standards from '51-59.  But, one has to know if it is a pin type or strut type synchronizer.  you can tell that by removing the side cover and looking at the 2/3 shift collar/clutch sleeve.

 

I took a look at ebay, and there are a number of parts there.  For instance, cluster gears in th 85-95 dollar range for new.  It might take a while but you may be able to find most larger parts there.  Syncro rings and other small parts may be more difficult.

[59bisquik]

Ken, thanks for the help. That is exactly my question. I know the R10 is the overdrive tailhousing unit. What do I look up for the main transmission? They are always referenced as a Ford R10 or Chrysler R10, but never the actual tranny model number.

[martybose]

Also be aware that a Mopar R10 is a very different animal than any other R10.  Most of the internals interchange, but the Mopar R10 uses a unique electric shift mechanism.  The guy that rebuilt mine did a great job with gears and whatever, but left a itty bitty little plunger out that eliminated any possibility of actually shifting until another member of this forum clued me in and sent a photo of the missing part.  You've been warned!

 

Marty

[59bisquik]

Ok, for those of you that have one you have already mentioned they are tough to get parts for. I was trying to stay as period correct as possible, but would I be better off with a modern overdrive? I have a 325 hemi and see mostly freeway driving.

[DJ194950]

The Mopar R-10's are a R-10 G-1 for most. Did the 1 change to reflect the change in the blocker rings ( sycho's) in the main gear box?? I do not know that bit of info, but someone like Northwest Transmission Should know.??

 

The gears for the main gear box are the same as a 3 spd.tranny without the OD. The only difference between the std. 3 spd box and the OD main box is the Main shaft in that box as it is made to connect in the OD add on adapter. I believe that will make the gears much more available as the y are Not exclusive to a OD R-10-G-1.

George Ashe seems to be the Main source of info as to the gear box gear swaps to get different ratio gears in the 3 spd. main  box, OD or otherwise.

I swapped some gears out of my std, 3 spd. that were in better shape than the ones in the OD trans I bought. This was an early type with the brass blocker type synchros, not the (pin) type used  in the later ( year) versions?

 

Hope that does give you some info that is of some help.

 

DJ

Edited April 15, 2019 by DJ194950

[pontiacguy]

I use Standard Transmission in Ft Worth, TX. They have had all the obscure parts I have ever needed and they know their stuff.