mightmo52 Posted February 25, 2017 Report Share Posted February 25, 2017 hi everyone, i have been reading the forum for over 3 years, and i have one question. the master cylinder shaft pin on my desoto is different length than on my plymouth any idea why? thanks maurice from florida. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted February 25, 2017 Report Share Posted February 25, 2017 All 1949-52 pedal shaft/M/cylinder pins are all the same part#. Of course I have no idea as for your DeSoto because you don't state the model and year. Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 25, 2017 Author Report Share Posted February 25, 2017 54 desoto sorry Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted February 25, 2017 Report Share Posted February 25, 2017 1954 DeSoto S19...V8 S20 Power Master 6 are are different parts #'s than the 1949-52 Plymouth cars... Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 my car is nota power brake car. Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 does anyone know how long certain cars master cylinder shaft pin is ? i just want to know the different size length's that pertain to Plymouth dodges etc. i checked the parts book and it shows some length info but im not sure if it correct. thanks maurice. Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 26, 2017 Report Share Posted February 26, 2017 My P-15. This might or might not help. Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 (edited) thanks very much don, can you please tel lme what the total length of your shaft pin is? 6 inches ? thanks for the pic. ' is there any mopar book that shows the lengths of the shaft ? Edited February 26, 2017 by mightmo52 Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 26, 2017 Report Share Posted February 26, 2017 I had to dig through my stash to find a pin but it measures right at five inches. This is off of a Plymouth P-15 Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 thanks very much Don C, do you think the pins are interchangeable can you use a 4 inch pin in 48 plymouth for example ? the pin i took out of the wagon was only about 4 inches? Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 26, 2017 Report Share Posted February 26, 2017 33 minutes ago, mightmo52 said: thanks very much Don C, do you think the pins are interchangeable can you use a 4 inch pin in 48 plymouth for example ? the pin i took out of the wagon was only about 4 inches? Well this is the P-15, D-24 forum as both of the P-15 and D-24 cars are 1946-1948. So the picture of the P-15 pin that is 5 inches long was designed for a 1948 Plymouth. I suppose it is possible to use a four inch pin in a 1948 Plymouth master cylinder but you would have to make all new skinny pedals and re-engineer both the clutch and brake pedal linkage as it would no longer line up. It might possibly cost less to have a replacement 5 inch pin fabricated at a machine shop. What exactly are you trying to do? A 1951 Plymouth master cylinder and linkage setup is not the same as a P-15. Pictured below is a P-15 setup. Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 i was curious why they are different if they have the same engine and similar transmissions. i guess it does not really matter do you know the part number to the pin shaft don? Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 26, 2017 Report Share Posted February 26, 2017 Once again what are you wanting to do? Changes frequently happen in model year changes. 1948 to second generation 1949 was a big change. What are you working on and what do you want to do? Modified? Stock? Without more details nobody will be able to assist. Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 26, 2017 Author Report Share Posted February 26, 2017 i am not working on any car right now, i was just curious why they are different lengths with amost identical drivetrains from 1942-1954 thats all. thanks for help. Quote Link to comment Share on other sites More sharing options...
Young Ed Posted February 26, 2017 Report Share Posted February 26, 2017 I believe they went to a frame mounted clutch so the pin only has 1 pedal instead of 2 Quote Link to comment Share on other sites More sharing options...
mightmo52 Posted February 27, 2017 Author Report Share Posted February 27, 2017 hi young ed, thanks for sharing any idea when this was done ? thanks makes sence. Quote Link to comment Share on other sites More sharing options...
Young Ed Posted February 27, 2017 Report Share Posted February 27, 2017 I think for the second series 49s Quote Link to comment Share on other sites More sharing options...
OLDMOPAR84 Posted February 27, 2017 Report Share Posted February 27, 2017 great thanks Quote Link to comment Share on other sites More sharing options...
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