DRIVESHAFT/YOLK Length??HELP

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  • lateracer7d
    Member
    • Oct 2013
    • 46

    #1

    DRIVESHAFT/YOLK Length??HELP

    I have a rocket chassis with older style bert transmission..7 inch yolk will not slide in transmission all the way..WHat length driveshaft and yolk do I need to go with??
  • wismadman
    Senior Member
    • May 2007
    • 267

    #2
    depends on the shaft in the trans. How deep is the spline, and if you have a chain limiter or use the shock to stop travel. I had a shorter yoke bottom out on the seal. Than I have a longer yoke that bottoms out on spline or something.

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    • lateracer7d
      Member
      • Oct 2013
      • 46

      #3
      I have a 38 Inch driveshaft with a seven inch slip yolk..Problem is when I slide the yolk in transmission it bottoms out..it has the older style tailshaft on transmission..there has got to be a driveshaft and yolk combination that I can use..it came out of a latemodel so I there has to be a combination..

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      • wisdirtfan
        Member
        • Oct 2013
        • 94

        #4
        You can take the transmission apart and undercut the tailshaft a little bit so the yolk will go in completely without stopping. I did this to mine to make sure it wouldn't bind up at full droop and it hasn't broken after 3 seasons with an open motor and it was used to begin with.

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        • tin man
          Junior Member
          • Nov 2007
          • 28

          #5
          Just ran into this with a Brinn/Mastersbilt and we did what wisdirtfan reccomended. It wasnt that big a deal to fix the problem. Remove the tail shaft and have it machined the depth of the splines for the distance the yoke wont slip in. or you can order a new Brinn shaft that is already machined.

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