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Technical Quickchange question

Discussion in 'Traditional Hot Rods' started by Rocket88NZ, Feb 11, 2024.

  1. Rocket88NZ
    Joined: May 7, 2007
    Posts: 436

    Rocket88NZ
    Member

    Hi guys,
    I have an old fabricated quick change that I wanted to use on my roadster project. Was thinking of using a coupler and yoke, machining the yoke out and welding coupler in as done on banjo open drive set ups. My question is is the shaft I have to long to do this, will I need to shorten it before putting on the coupler and yoke. Will put pictures up so that you can see what I'm talking about. P1080072.JPG P1080073.JPG P1080075.JPG P1080074.JPG P1080076.JPG
     
  2. 29Roadie
    Joined: Dec 9, 2018
    Posts: 34

    29Roadie
    Member

    I really don't think you could use that shaft without shortening it a lot then re-splining it (expensive in my neck of the woods). Could you not just buy a lower shaft for an open drive quickchange from Hot Rod Works? Actually you could just get the entire open driveline conversion that comes with the yoke and flange/seal then call it done.
     
  3. Dave Graham would be the best guy to go to
     
  4. Yes, you will need to shorten your input shaft - whether going to open drive or torque tube. One thing you should really checkout before you get too deep into it is whether or not "standard" off the shelf QC gears will fit what you have? One would hope so - but you better check before you invest a lot of money into it.

    If you're going to open-drive, then this conversion will probably be easier - as you can get an open-drive u-joint yoke, seal plate, etc - and most likely weld the yoke onto your shaft. A better option might be to just buy a new lower main shaft - with whatever front seal, coupler, yoke, etc. your rear setup requires. This is probably what I'd do.

    You'll need a new ring and pinion for sure and hopefully you or somebody you know is experienced in setting up banjo rears with quick-change centers. It is not super hard to do, but you need the right tools and the clearances, contacts patterns, etc - need to be correct.
     
  5. Rocket88NZ
    Joined: May 7, 2007
    Posts: 436

    Rocket88NZ
    Member

    Thanks, great advice as usual. Figured that it would need to be shortened. Yes it does take Winters gears so that part should be okay. I did talk to Dave Graham quite a while ago and yes he is probably the guy to set it up, thanks Greg.
     
    Greg Stokes and alchemy like this.

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