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G250 to large guibo driveshaft

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    G250 to large guibo driveshaft

    I promise I have searched a great deal (my low post count means I usually search before asking a question) and here is my concern...

    I am swapping an M50tub25 into my 6/86 eta. I just recently replaced my driveshaft due to a failed U-joint (about 2 months ago). My plan was to pick up a ZF transmission so that I could continue to use the driveshaft I just replaced.

    However, I found a low mileage G250 for $50 locally with a 1 year warranty. This would include giving them my G260 from the eta as a core when the swap was completed.
    The problem is the G250 has the small guibo and my driveshaft has the larger. Clearly I cannot bolt my driveshaft up to this trans and I don't want to have to ditch the new driveshaft just to spend another $350 on a different one.

    1. Can I swap out the output flange from my G260 to the G250?

    2. Can I use the Revshift guibo "backwards" to mate the two together?

    3. Should I bite the bullet and buy another driveshaft?

    Should I just buy another flywheel (my dual mass is shaking like whoa) and use the longer ETA G260 that I have? If so, should I grab a shift carrier assembly from an e36 to make correcting the 10 degree rotation a little easier?

    I apologize if this has been covered more clearly elsewhere, I promise I have spent a great deal of time searching before starting a new post.

    I am picking up my head from the machine shop today. The motor should be back together by the weekend and the transmission issue is one of two issues keeping me from completing the swap before Vintage at the end of May.

    Thanks in advance!

    #2
    I used a reg 325is drive shaft with the G250 that came on my M50NV. Didn't realize the ETA's had the 12mm bolt hole guibos I thought only the late E36's did.

    I would try swapping output flanges but IRRC they are not the same shaft size....
    Originally posted by 325Projectz
    don't listen to the diagram... listen to mr. swiss.
    :nice:

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      #3
      I think you're right. I looked all over for an answer as to whether the output shafts would interchange and I can't find a thing. My guess would be no or someone would have figured it out by now.

      I need to stop being cheap and just pick up a ZF so I can keep my driveshaft and my diff.

      Comment


        #4
        The G250 sucks the dick .dont even bother.

        260 or ZF.
        1985 325e M50TU(Sold)
        1991 318is Slicktop (Sold)
        1990 325is Brilliantrot S50/5 Lug Swapped.
        1992 525i Manual shitbox Winter Beater

        Comment


          #5
          ^This.
          Ill buy that DS from you ;)

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