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Thread: BMW 850 E31 Staked U-Joint Replacement

  1. #1
    Join Date
    Oct 2016
    Location
    Shoreview MN
    Posts
    977
    My Cars
    Had a 1991 BMW 850

    BMW 850 E31 Staked U-Joint Replacement

    Had a Bad Staked Non Replaceable U-Joint in my 1991 850. In the words of my Buddy Tony, If you are going to make it Lifetime, I want a Lifetime Warranty
    Option 1. New Driveshaft $1200
    Option 2. Send it to TX $500
    Option 3. Buy U-Joint and Cut Grooves for Retaining Clips, Not enough Room See Pictures
    Option 4. Buy U-Joint and use Hydraulic Press and Correct Staking tool $$$
    Option 5. Buy U-Joint have 86 YO machinist Dad make me washers and have Vlad the Welder TIG them in.

    U-Joint PN is GMB 220-7284, bought it on Amazon
    These are a pain to get out, Dremel with a grinding wheel to take out the stakes. Had to buy the C Clamp big tool to press the bearing caps out. One of the bearing caps was so hammered I could dig it out with a screwdriver. Other two I could not grab onto so I just broke out the disc grinder and cut it apart and pounded out the remains.
    You have to clean up the insides of the driveshaft really well with the Dremel and the grinding wheel. Made the mistake of pressing the Bearing Cap in when it was to tight and had to buy a new U-Joint.
    Dad made me washers, some people use quarters, Squared everything up and had Vlad TIG them in. You don't need much.
    Cleaned up the shaft, Paint, good as new
    Attached Images Attached Images

  2. #2
    Join Date
    Oct 2016
    Location
    Shoreview MN
    Posts
    977
    My Cars
    Had a 1991 BMW 850

    U-Joint Replacement

    More Pictures
    Attached Images Attached Images

  3. #3
    Join Date
    Oct 2016
    Location
    Shoreview MN
    Posts
    977
    My Cars
    Had a 1991 BMW 850

    U-Joint Replacement

    Even More Pictures
    Attached Images Attached Images

  4. #4
    Join Date
    Dec 2013
    Location
    San Antonio
    Posts
    712
    My Cars
    850,76 2002 &530,84 633
    Very good! Nothing is easy. Did your father make a handful of washers for the rest of us, lol? How much end-play do you need, maybe a few thousandths?

  5. #5
    Join Date
    Oct 2016
    Location
    Shoreview MN
    Posts
    977
    My Cars
    Had a 1991 BMW 850

    Red face Washers

    Quote Originally Posted by JDP530 View Post
    Very good! Nothing is easy. Did your father make a handful of washers for the rest of us, lol? How much end-play do you need, maybe a few thousandths?
    I have 4 Extra for the other U-Joint

  6. #6
    Join Date
    Sep 2010
    Location
    Corpus Christi Texas USA
    Posts
    524
    My Cars
    850ci, M5, Alpina B7
    Got mine from Texas driveline specialist also for my M5. Beats being out of balance when your done doing it your self.


    Sent from my iPhone using Tapatalk

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