drive shaft vibrates like a bitch

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  • Killacortes
    E30 Mastermind
    • May 2010
    • 1937

    #1

    drive shaft vibrates like a bitch

    This is on a 86 325es automatic and has no Guido. I know a five speed swap would fix this problem but it's not going to be my car anymore. I replaced the center support bearing and tranission mounts but only helped it a little.

    Is it safe I say my U joints are bad on my driveshaft and needs to be replaced? Or does this seem like a problem with the output shaft of the transmission.
    Originally posted by blunttech
    r3v does not fuck around. First you get banned, then they shoot you
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    If you feel the vibration as if it was from under the car and if the rubber mount of the previous CSB had failed, then it is almost certain that the vibration is from bad u-joints in the drive shaft.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • JCarp90
      E30 Mastermind
      • Feb 2011
      • 1759

      #3
      From the factory it has no guibo? I didn't know they did that.

      I doubt it's the transmission. I'd drop the DS and put on a new CSB before I do anything else. They're like $25 so fuck it if you're wrong. Probably could have been replaced anyway.

      Also I've got a spare 4HP22 laying around from when I did my 5-speed swap. Take it off my hands lol.

      Comment

      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #4
        He has already replaced the CSB. But since in almost all cases a failure of the CSB is caused by bad u-joints in the drive shaft, I'm going with a bad drive shaft.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

        Comment

        • Killacortes
          E30 Mastermind
          • May 2010
          • 1937

          #5
          Originally posted by jlevie
          He has already replaced the CSB. But since in almost all cases a failure of the CSB is caused by bad u-joints in the drive shaft, I'm going with a bad drive shaft.
          Thanks bro! Is it normal for the driveshaft to have no guibo? This is my first auto e30
          Originally posted by blunttech
          r3v does not fuck around. First you get banned, then they shoot you

          Comment

          • JCarp90
            E30 Mastermind
            • Feb 2011
            • 1759

            #6
            Mine had a quibo. If you don't have one, you probably have the wrong DS or your trans is F'd because someone decided to not replace the guibo.

            Comment

            • Garageaholic
              Freestyle Fabricator
              • Dec 2005
              • 5204

              #7
              All E30's, manual or autotragic, had guibo's. Without them, there'd be premature wear on the rest of the drivetrain not to mention the transmission.
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              Comment

              • Killacortes
                E30 Mastermind
                • May 2010
                • 1937

                #8
                damn thats fucked! when i took everything apart there was no guibo! guess OP must have taken it out
                Originally posted by blunttech
                r3v does not fuck around. First you get banned, then they shoot you

                Comment

                • Killacortes
                  E30 Mastermind
                  • May 2010
                  • 1937

                  #9
                  well after readin a couple threads some e30s didnt come with guibos at all. i have a 4 bolt output flange and no guibo.

                  now my question is, can i swap the output flange to a 3 bolt one and use a driveshaft from an auto car?
                  Originally posted by blunttech
                  r3v does not fuck around. First you get banned, then they shoot you

                  Comment

                  • stamar
                    E30 Fanatic
                    • Apr 2011
                    • 1362

                    #10
                    k wait you hav 4 bolt out put but on the transmission theres 3 bolts flange

                    whats in the middle?


                    take a picture of that please


                    so thats 7 bolts going into something. Even if its not a guibo its taking the place of a guibo

                    Comment

                    • Killacortes
                      E30 Mastermind
                      • May 2010
                      • 1937

                      #11
                      Originally posted by stamar
                      k wait you hav 4 bolt out put but on the transmission theres 3 bolts flange

                      whats in the middle?


                      take a picture of that please


                      so thats 7 bolts going into something. Even if its not a guibo its taking the place of a guibo
                      im saying i dont have a 3 bolt output flange. i have a 4 bolt one so there is nothing in the middle where the guibo would usually go. its just tranny to driveshaft held by 4 bolts. ill take a pic when it gets taken apart again
                      Originally posted by blunttech
                      r3v does not fuck around. First you get banned, then they shoot you

                      Comment

                      • Skunkworks
                        E30 Addict
                        • Sep 2012
                        • 436

                        #12
                        I have a 4 bolt auto DS if you need it, I would be willing to sell it. PM me

                        Comment

                        • Killacortes
                          E30 Mastermind
                          • May 2010
                          • 1937

                          #13
                          Thanks bro but picked up a 3 bolt DS and just gonna swap out the output flanges
                          Originally posted by blunttech
                          r3v does not fuck around. First you get banned, then they shoot you

                          Comment

                          • bmwman91
                            No R3VLimiter
                            • Oct 2004
                            • 3128

                            #14
                            Also make sure that the two halves of the driveshaft are properly aligned. There is ONE orientation that they go together in where they will not create a speed-dependent vibration because they were co-balanced in that orientation. There are usually two white alignment marks in the yokes that are supposed to line up. Clean things up around there & see.

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                            • Killacortes
                              E30 Mastermind
                              • May 2010
                              • 1937

                              #15
                              Yea for sure man. I got worried before when I forgot to mark the splines until I found the two white dots
                              Originally posted by blunttech
                              r3v does not fuck around. First you get banned, then they shoot you

                              Comment

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