833 tailshaft swap

Engine, Trans & Driveline

  1. Garand-chan

    Garand-chan Active Member

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    With that adapter, couldn’t I just bolt that to the tranny, possibly shorten the driveshaft if I have to, then connect the two? Possibly a stupid question.
     
  2. Meep-Meep

    Meep-Meep дворянин

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    Exactly. Just put the tranny in. But make careful measurements so the driveshaft is made correctly. The driveshaft shop will tell you how to measure it.
     
  3. Runcharger

    Runcharger Well-Known Member

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    Do you have a driveshaft for a 727 in your car now? If so I would spend the $$$ to make the 4 speed work with it so you have a stock combination (which would involve converting your 4 speed to a slip yoke B-body). If you don't have a 727 driveshaft (either no driveshaft or a 904 driveshaft) then you do whatever for the $$$.
     
    • Agree Agree x 1
    • Garand-chan

      Garand-chan Active Member

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      It’s a 904.
       
    • Garand-chan

      Garand-chan Active Member

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      Bruh thank you so much. That’s certainly what I’ll do then. I’m glad you all are so helpful and nice rather than judgy. For the most part.
       
    • MCODECUDA

      MCODECUDA Well-Known Member

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      You still need to have a driveshaft like this in order to make it work.

      upload_2021-1-22_16-31-35.jpeg
       
    • Garand-chan

      Garand-chan Active Member

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      Probably a dumb question, but why?
       
    • MCODECUDA

      MCODECUDA Well-Known Member

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      Something has to compensate for the rear end going up and down as the distance between the rear end yoke and the end of the transmission changes. That is the function of a slip joint or when applicable the ball & trunion.
       
    • Garand-chan

      Garand-chan Active Member

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      Huh. I figured that if I used an adapter on the trans, it would effectively create a complete slip joint, wouldn’t it? Also, the driveshaft pictured is obviously a Dennys unit, but exactly what driveshaft of theirs would I need? Like what’s different about it compared to the one I have? Apologies for my ignorance.
       
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