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Driveshaft Install question

Discussion in 'XJ Technical Chat' started by TECHLINETOM, Jun 9, 2015.

  1. TECHLINETOM

    TECHLINETOM Member

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    Any tricks to getting the driveshaft splines into the u joint? I fought with it until frustration took it's toll. Thanks in Advance,
    TECHLINETOM
     
    TECHLINETOM, Jun 9, 2015
    #1
  2. cds1984

    cds1984 Active Member

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    Typically the uni slips on very smoothly so...
    Check the grease is clean and the splines are not damaged.
    The other thing is to lock the back wheel to make sure it doesn't spin while you labour to fit the joint.
    Good Luck!
     
    cds1984, Jun 10, 2015
    #2
  3. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    I the drive shaft back in before putting the rear hub back on. I sit on the left Side of the bike, keep the boot wedged back so I can see, keep a finger at/in the joint so I can keep it level, and slide the shaft in. Rotating and wiggling a tad if needed. But if you don't stabilize the u-joint, it's gonna keep flopping around and you'll never get the shaft to slide in. It only takes a minute or so.

    If you're trying to put the whole rear in as a big unit, you're gonna keep fighting with it as you have weight and bulk fighting against you.
     
    hogfiddles, Jun 10, 2015
    #3
  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Make sure that the snap ring on the end of the driveshaft is free to move. There will be some resistance when you push the driveshaft home as that ring compresses, then locks into place.
     
    k-moe, Jun 10, 2015
    #4
  5. TECHLINETOM

    TECHLINETOM Member

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    Thankyewvurrymuch Gentlemen. I believe the u joint was out of alignment with the shaft. I was changing out the 850 FD for the 1100FD and had to remove the shaft so I could remove the spacer. In addition I murdered the boot in the process.o_O
     
    TECHLINETOM, Jun 10, 2015
    #5
  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    850? What the heck are you working on?
     
    k-moe, Jun 10, 2015
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  7. TECHLINETOM

    TECHLINETOM Member

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    XJ1100. I put the 850FD in to try for better milage. No workie. 1100 FD back in.
     
    TECHLINETOM, Jun 10, 2015
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  8. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    From an XS? Ya no workie because it's the same ratio (IIRC). Try one from a Venture. Pay close atttention to the placement of the shock mount so you get the right one.
    A V-max final drive would be even better (but generally more expensive) if you are mainly looking for fuel economy.
     
    Last edited: Jun 10, 2015
    k-moe, Jun 10, 2015
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  9. TECHLINETOM

    TECHLINETOM Member

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    It's been in for 5 years. I was just switching back when it got all sideways. The FD from a 750 or 850 triple takes the rmp from 5 grand @ 70 to 4 grand @ 70.
     
    TECHLINETOM, Jun 11, 2015
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  10. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Hmm... I did not know that. Thanks for teaching me :)
     
    k-moe, Jun 11, 2015
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  11. TECHLINETOM

    TECHLINETOM Member

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    You're welcome. I learned it here!:)
     
    TECHLINETOM, Jun 11, 2015
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