727 Identification and Tail housing swap

Transmission and Drivetrain Tech

  1. C2ndLTpigeon

    C2ndLTpigeon Mopar or no Car! FABO Gold Member

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    Can someone help me identify this 727? The number on the side looks to be: PK3736145 4940 0717? I purchased this with a 360 that has an emission sticker of Feb 1975.

    I plan to put it in my 73 Valiant down the road. I know that I will have to swap the tail housing and output shaft which is no problem as I will be tearing down the complete unit and rebuilding it. What I wanted to know is Other than the output shaft, housing and maybe the governor, is there anything else I may need to change?

    173945090_1937168556460044_7608197690936659472_n.jpg 176687350_284428979986846_6537978471347032773_n.jpg

    176687350_284428979986846_6537978471347032773_n.jpg
     
  2. fshd4it

    fshd4it Squid inc FABO Gold Member

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    That number comes up for '74-'75 318 or 360 powered D200/D300 truck.
     
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    • jas0162

      jas0162 Well-Known Member

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      They changed the spline angle on the output shaft to gear set in the mid seventies. Make sure you get the right one as they do not interchange. I’m not sure exactly when they did it, but I think around 75.
       
    • C2ndLTpigeon

      C2ndLTpigeon Mopar or no Car! FABO Gold Member

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      From this post I found after doing some digging it looks like 76 was the year that the shaft changed.
      727 OUtput shafts.jpg
       
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      • 67Dart273

        67Dart273 FABO Gold Member FABO Gold Member

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        Actually you would NOT have to change anything......I've been told guys get a shaft made with a slip setup on/ in the shaft. Of course then it would be unique and more expensive, so you "might not" wanna..........
         
      • C2ndLTpigeon

        C2ndLTpigeon Mopar or no Car! FABO Gold Member

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        I've read that as well especially the spendy part. The one I got needs a tear down any way so I don't mind doing the swap.
         
      • whatsamerc??

        whatsamerc?? Active Member

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        Would you sell the yoke off your trans?
         
      • C2ndLTpigeon

        C2ndLTpigeon Mopar or no Car! FABO Gold Member

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        The bolt on yoke?
         
      • oldkimmer

        oldkimmer FABO Gold Member FABO Gold Member

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        He is talking about the other end of the shaft that has the snap ring groove in it. Kim
         
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        • whatsamerc??

          whatsamerc?? Active Member

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          Yes, i believe it will bolt up to a big block trans and it uses a smalle u joint.
           
        • C2ndLTpigeon

          C2ndLTpigeon Mopar or no Car! FABO Gold Member

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          Sent you a PM
           
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