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Thread: rear sway bar options

  1. #1
    another classic car guy EricB's Avatar
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    Default rear sway bar options

    Morning all,

    Everything below relates to a 1973 which came with the factory welded in u-shaped brackets for a stock rear swaybar.

    ... however one of those u-shaped brackets was bent/flattened open so that it very nearly touches floorpan. I've tried to bend it back but it aint easy to budge. The car is also missing the M12 bolt-in brackets that hold sway bar / sway bar bushing into the U-shaped brackets. These seem to be NLA. Guess I would have to make something.

    i have seen the through the floor drill/bolt bracket set-up MSA sells for rear swaybar conversions but didn't like the looks of it.

    i also have a set of the L-shaped rear end brackets on either side of the diff which allow for a rear mounted swaybar (located rearward of the diff). These attach to the trunk floor pan and the rear transverse link, they are labelled as #2 in the attached sus diagram.


    -> Is there a commonly held belief that one type of rear bar is better suited than the other?

    I'd love to be able to use the factory bracket if I can bend the flattened u-shaped back to form and make something to hold the sway bar in place. Guess I'll just have to see how much stress that puts in the metal & how straight I can get it.

    Then again finding a rear bar to bolt to the L-shaped brackets that hold the rear transverse link would surely be a lot easier...

    Thanks guys,

    -e
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  2. #2
    HLS30165540
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    Default

    What are you using to try and straighten the bracket? I would make something specific for the job. Use those fab skills. Then put the car on a lift so you can really get under there. Put a 5' cheater pipe on it and it should bend like butter. I got lucky and got the bracket end plates off a "donor" 74.

    Good luck
    The 1973 240Z 165540 Slightly modified. L28, 5sp, cam, headers, MSD 6AL, power windows, power door locks, leather seats, custom this and custom that.

  3. #3
    Supporting Member =Enigma='s Avatar
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    Default

    I'm not sure what you goals are but if you are looking to install a larger than factory rear sway bar, your only option may be to find a set of rear transverse link mount brackets (L-shaped things) with a provision for sway bar mounting. Suspension Techniques sold these with their rear kits and may still do so.
    =Enigma=
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  4. #4
    beandip beandip's Avatar
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    Default

    I was able to find a early '74 . The sway bars on the early '74 will work as they have a bend in them to allow clearance that the later ones do not have. They do make a difference in handling . The end links are all the same so two from a later Z will work fine. I used the OEM rubber on all and am satisfied with the result. My Z is not a track car, but with the Euro stage I springs and it being lowered she handles vary well. And the ride is just firm enough and not harsh.
    I don't have any knowledge of how well the MSA bar works.
    If you do use the OEM mounts , I have a extra pair of the plates that hold the block/and bar in place. If you need them send me a PM
    Gary
    I'd rather die while I am living than live while I am dieing. CZC 1887 IZCC 12602 Member of NorthWest Z Car Club

  5. #5
    another classic car guy EricB's Avatar
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    Hi all

    Thanks for the replies.
    Let me add that I have two factory rear bars in different diameters - that's why bending the bracket back into service would be key.

    I do also have a set of the L-shaped brackets that are used by suspension techniques-style rear bars.

    I was curious to hear if there was any kind of advantage going with one over the other, purely based on how it attaches to car/geometry on a lowered Z/etc...

    Sorry again if I was unclear before.

    ED: can i see a pic of the bracket end plates you got off the 74 donor car?
    Does the end opposite the M12 bolt have a return in it and hooks into the frame bracket, or is it straight and merely locates in the hole?

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