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Thread: drive train hum

  1. #11
    Join Date
    Jan 2016
    Location
    Netherlands
    Posts
    220
    My two P38's certainly do not have them, but I have noticed them for sale, specifically for the P38. I guess it is optional to use them?

    In any case, I crawled underneath the car yesterday when changing my road wheels for my MTR's and I took a crowbar to the different parts. There is some play on the front U-joint but not on the diff so far as I can tell. Interestingly there is only some play on 1 axis of the cross part. At the transfercase side there seems to be very little play on the U-joint but there seems to be some play between the transfercase housing and the output shaft. Since no oil is leaking from the seal I take it that this is within tolerances though I do seem to recall there is a bearing in which the VCU rests so I would not really expect there to be ANY play.

    What surprises me the most is that the u-joint's are brand new and installed recently. I guess they are cheap replacements...

    In the rear there is also some play on the diff side U-joint but no where else it seems.

    Unfortunatly I have committed to driving to the abenteuer und allrad messe so I hope they hang in there for another 1000K's

    Cheers!
    -P

  2. #12
    Join Date
    Jan 1970
    Location
    Douglas Park, NSW
    Posts
    9,261
    Have you checked all of the wheel bearings? I had a drone for ages before finally finding a bearing was on the way out.
    Scott

  3. #13
    Join Date
    Jan 2016
    Location
    Netherlands
    Posts
    220
    Since my trip to wales where one failed catastrophically in 2016 I have replaced them all. Have done at most 30K so I should think they are ok. I have tested them ofcourse but I can't find anything wrong with the bearings.

    Thanks though!

    -P

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