Cluster Gear

[1940plymouth]

Are the cluster gears interchangeable from a 1939 floor shift Plymouth tranny to a 1940 Plymouth column shift tranny?

[Jim Yergin]

By "cluster gear" do you mean the countershaft gear assembly? If so, the part numbers are different for those years. 1936-1939 used 661302, 1940 used 853885, and 1941-1948 used 697823. That does not mean that they won't interchange. I have installed a "fast second" gear and countershaft assembly from a 1940 Plymouth in my 1953 O/D transmission. The 1939 countershaft assembly may go into the 1940 transmission but you may also have to install the 1939 second gear. Sorry I can't be of more help.

Jim Yergin

[desoto1939]

As per the other responce the 37-39 cg is part number 661302

40 part # 853885

41-52 part# 697823

These fit all the mopar cars from the years listed.

I do see alot of the 40 CG on ebay every so often. I would go with the 1940 specific CG. This is just my opinion.

Rich

desoto1939@aol.com

[David Strieb]

according to my mopar streamliner catalog for the "countershaft gear assembly":

#661 302 fits '35 thru '39 plymouth, dodge, chrysler, and '36 thru '39 desoto

#853 885 fits 1940 plymouth, dodge, chrysler, and desoto

#697 823 fits '41 thru '47 plymouth, dodge.

chrysler and desoto '41 thru '42 uses 2 different part #'s depending on if the car has a std. 3 speed or an overdrive

chrysler and desoto '46 and '47 uses #1112 457

This catalog was published in '47

The transmission assembly should interchange from '40 thru about '54. Too bad your're so far away, I have 3 or 4 std 3 speeds that will fit your car that need a new home. Had them for my P10 before I put the GM running gear in.

[1940plymouth]

I want to take time to thank everyone for their help.

I had a good question asked me yesterday that I wasn't able to answer.

Am I sure the tranny is a 1940?

I know the engine is a P-11, but just figured the tranny was original to the car.

It is raining here today, with rain mentioned on and off all weekend. I'll crawl under the car when it dries up, so I can look for some casing numbers on the tranny case.

Thanks again,

Bob