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Thread: inexpensive solution to flex-joint bolt/nut, Ireland Engineering?

  1. #1
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    inexpensive solution to flex-joint bolt/nut, Ireland Engineering?

    I'm replacing ALL the flex-joing bolt/nut (6x) on my '93 325i, the flex-joint disintegrated to the point of damaging some bolts.


    Would this inexpensive solution

    https://www.iemotorsport.com/product...-bolt-5-speed/

    work? Only $13 for a set of 6 bolt/nuts



    The shoulder is not as long as in genuine BMW



    ^^^ $6 per bolt, $2 per nut -- a whopping $48!! Dealer wants $12/bolt, just freaking INSANE!!

    So..I'm concerned that a solid shank would be better to "fill" the sleeve of the flex-joint




    Last edited by chimpanzee; 08-11-2022 at 01:13 AM.

  2. #2
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    In general, IE is a trustworthy vendor. But I don't like that shorter shank either, and tend to go towards the safe decision. I would confirm wth them that it is in fact shorter. Also, I'd wait to see how the pundits on this site respond to your question. ... Your instructions above say to replace the bolts, but everything I read said only the nuts. But of course, if your bolts are damaged you have to replace them. ..... Heres' one thread on the topic: https://www.bimmerforums.com/forum/s...ighlight=guibo

  3. #3
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    Quote Originally Posted by zellamay View Post
    In general, IE is a trustworthy vendor. But I don't like that shorter shank either, and tend to go towards the safe decision. I would confirm wth them that it is in fact shorter. Also, I'd wait to see how the pundits on this site respond to your question. ... Your instructions above say to replace the bolts, but everything I read said only the nuts. But of course, if your bolts are damaged you have to replace them. ..... Heres' one thread on the topic: https://www.bimmerforums.com/forum/s...ighlight=guibo
    They just told me it's 10mm bolt, so it won't work for e36

  4. #4
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    Quote Originally Posted by chimpanzee View Post
    They just told me it's 10mm bolt, so it won't work for e36
    That explains a lot. I was having trouble envisioning IE offering some compromise bolt.

  5. #5
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    You can PM member '66 6'. He can give you a good price on 6.
    Avoid Vogtland Suspensions! Rusted then failed!

  6. #6
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    You can find a budget solution at Home Depot. Everbilt M12-1.75 60mm bolts (Grade 8.8) 2-pack for $4.75.

    https://www.homedepot.com/p/Everbilt...022082#overlay

    3-pack of M12-1.75 nuts for $2.75

    For 6 bolts & nuts, comes to $19.75 + tax

    See pic. The shoulder is not as long as the stock BMW M12-1.5 58mm. The nuts are regular (non-locking). But, Home Depot sells some locking nuts ($2.75), they are more than online price $1.95 (BMW locking nuts)

    IMG_20220813_124642_253.jpg

  7. #7
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    It's not stamped on the OE bolts, but I'm pretty sure they're 10.9 or higher. I wouldn't use 8.8 bolts on a driveshaft flange.

    Cheapest option is to remove OE bolts from an used car (scrapyard). Or buy new.

    Quote Originally Posted by chimpanzee;30823222
    Would this inexpensive solution

    [URL
    https://www.iemotorsport.com/product/guibo-flex-disc-hardware-6-bolt-5-speed/[/URL]

    work?
    It doesn't list e36 in the description.
    Last edited by samy01; 08-14-2022 at 09:13 AM.

  8. #8
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    1993 318is/who to knows
    Ebay a used set.

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