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Thread: R380 output shafts

  1. 22nd June 2014, 08:49 PM #1
    ROAMER_AUS
    ROAMER_AUS is offline Master
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    R380 output shafts

    Spot the difference.......

    Check out spline wear as well!

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  2. 22nd June 2014, 09:24 PM #2
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    Scouse
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    Spline wear was very common on early R380 boxes. There was a drilled transfer case input gear that supplied more oil to the splines in an attempt to fix it.
    Scott
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  3. 23rd June 2014, 05:49 AM #3
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    Jojo
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    Not unheard nor unseen of:


    What a bother...
    Johannes

    There are people who spend all weekend cleaning the car.
    And there are people who drive Discovery.
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  4. 23rd June 2014, 05:51 AM #4
    uninformed
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    I wonder if the older hafts with the roll pin in the oil control ring shoulder have anything to do with their weakness?
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  5. 23rd June 2014, 03:59 PM #5
    ROAMER_AUS
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    I was trying to point more at the broken shaft rather than spline wear

    Both gearboxes are J suffix. Broken one had pin in oil chanel hole, other didn't. Abd rings or two half rings to be more precise are different. Is this to be expected?

    Also os this breakage something usual for these?

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  6. 25th June 2014, 03:38 AM #6
    Jode
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    Dave Ashcroft could probably provide some insight into this.
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  7. 25th June 2014, 07:27 AM #7
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    Scouse
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    Quote Originally Posted by ROAMER_AUS View Post
    I was trying to point more at the broken shaft rather than spline wear
    I wouldn't say breakage was common but it's not unseen in the early boxes.
    Scott
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  8. 25th June 2014, 11:26 PM #8
    Ian Ashcroft
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    Cool

    Hi Dave may well come along later but in the meantime, this is a very common break point on the ' J'. Box shaft, look closely at the undercut each side of the groove???. Later 'L' shafts do not have this under cut and are far less likely to fail, they also have a longer spline to reduce pressure and wear. In my opinion do not reuse a 'J' shaft replace with an 'L ' shaft and retaining collar ( fits in the groove where your shaft sheared) For best results also use a later gear if possible as they also have a longer spline as well as the cross drill oil feed. I will ask Dave if he will put an upgrade package together, shaft, collar, input gear(we will need tooth count) . Regards. Ian Ashcroft
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