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Hello,

    After driving around my 1954 plymouth with a powerflite trans for abit i noticed my hand brake dragging. so I took it apart. It turns out the previous owner never bolted the brake drum hub down to the trans output shaft!! He just put the u joints on. 

Im looking st doing a full rebuild. i found pads and springs. What aboyt the flange nuts ?? 

thanks 

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1 hour ago, Plymouthy Adams said:

don't overlook the fact that these transmission mounted drums extended to the 60 or there about, recall the 61 Plymouth in the family years ago had the trans drum yet......might not help but will possibly broaden your search parameters...

My 62 Chrysler Newport had the transmission mounted service brake as well, although by then it was an internal system (like a drum brake on the wheels).  Am I correct in remembering that it was still the band brake type in 53?

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1 hour ago, Plymouthy Adams said:

the earlier had external band on a drum, the later (think torqueflite) had the internal band within a drum

yup, I belive mid year 54 the went to the internal type aswell. I'm greatfull my driveshaft didnt pop off, but i definetly need to bolt it down to the trans output shaft. thanks guys

 

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Mid year 1950 was when Dodge, DeSoto and Chrysler changed from external brake band E-brake to internal brake shoes and 7" drum.

Plymouth used the external brake band up thru at least 1960 on the standard 3 speed trans.

Powerflites and later Torqflites as mentioned all used the internal shoes and 7" drum up till the early sixties I believe. 

Mid 1950 is also when Mother Mopar got rid of the 3/4" fan belt and went to the narrow more common sized fan belt...oops getting off track🚂!

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Update: 

    I picked up a spare trans to part out. after i pull the nut ect i will post the sizes and replacment part links. 

If youre looking for powerflite parts i will have them up in a week or so

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