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Thread: Stub Axle Differences 240z, 260z and 280z

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    Thumbs up Stub Axle Differences 240z, 260z and 280z

    Hi everyone, I'm looking at getting a set of 260z 2+2 stub axles for my 240z.

    I'm wondering if the 2 seater and 4 seater stub axles are the same? I imagine the only difference is that the 2+2's had longer driveshafts but the same stub axles.

    In the US I understand you guys swap to 280z stub axles which are the same as 260z stub axles here in Australia as far as I'm aware.

    If anyone has anymore details let me know.

    Reason for 260z stub axles is that I believe they are stronger and these are easier to adapt to a CV joint upgrade, something I will be doing in the future with an R200 LSD.

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    hi gavin the main differnce in the later 260z or 280z hubs are that they have 27 splines compared to 25 on the 240z or earlier 260z stub axles other wise they look the same i am upgrading to cv shafts and the adaptors i have will weld to either 240z style or later style as theres no difference in the axle flange that bolts to axles
    Now im waiting on my second set to be sent to me after being assured the first set where later 260z only to recieve and see there was no difference the guy even told me i didnt know what i was talking about been told since he no longer works for that z shop the boss assures me he sent me the right ones this time so im waiting to see
    he did make comment that on the later 260 the should be 4 humps or marks not on the 240 ones
    my worry is that on my current 240z stubs one has 4 humps and the other doesnt so will wait and see
    be just as easy to count the splines i reckon as such the 240z flange should not fit a later 260z stub
    as for the cv conversion its really only the extra strengh u gain from extra splines

    mick
    240 zed 1971 fitted with v8
    Mazda Rx4 rally car sedan 13b jport

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    Hi Mick yes I heard that information as well about the 27 splines. I thought I read it on www.240z.id.au however I could not locate the information when i looked again.

    Let me know how you go with the stub axles and the differences between 240z and 260z ones when you receive the "correct ones". I'm looking to buy a set of ZKid provided they are the right ones.



    I also read that early 240z ones have been known to break. pretty scary thought really.

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    hi gavin well they arrived today the 260 do have 27 splines as well as 4 raised knobs on wheel side flange at least
    240 stub has 25 splines flat face to stub axle wheel side
    can email u pic if you want gavin
    240 zed 1971 fitted with v8
    Mazda Rx4 rally car sedan 13b jport

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    yeah think the 240 reasonably strong stubs just when u start pumping more hp through they might get stressed
    its not that enjoyable driving on three wheels on rally i was in with my rx4 we came over a crest about 160 km on gravel next thing im not steering the car back left wheel goes sailing past lucky the mud stopped us 1 foot short of a big tree stump
    lesson in that not all wheel nuts have the same angle used a set from the guy i bought an rx4 shell off with my mags different angle to the nut and hole

    Then last weekend im out on my new raptor 4 wheeler and bugger be dead if the left back wheel dont go sailing past got say it was easier to handle than the rx4 on three wheels
    so you do want the best nuts and stubs holding your wheels on
    240 zed 1971 fitted with v8
    Mazda Rx4 rally car sedan 13b jport

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    zed240au

    Is it possible to get a copy of the picture which you have offered to Gavin?

    Thanks

    Joseph
    09/71 Datsun 240z (Semi-retired)
    1969 Datsun 1000 (Daily Driver)

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    sure know worries have pm u

    mick
    240 zed 1971 fitted with v8
    Mazda Rx4 rally car sedan 13b jport

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    Hi Mick,
    If you could post the image in the thread i'm sure it will help others now and in the future. If that's a hassle please send the pics to gavindoolan at optusnet.com.au

    Thanks alot,

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    Hello Gav, I think we may be in business, attached is a picture of the spare 240 Legs I have and the 2+2 ones, they have the four bumps on the hub flange. If this is indeed what you are after I shall get dismantling in the not too distant future.
    Chris
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    Ok I'll await Mick to send the photos of his and hopefully we will be able to confirm.

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    hi pictures attached pic 1 is the 240z 260z together pic 2 is 240z stub and pic 3 is 260z with bumps

    mick
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    Mick/Gavin

    I checked out the stub axles which are in my car over the weekend and it looks like they have been changed out from the original 240-Z to the later 260-Z with the bumps on them.

    With either of you contemplating the swap from your 240-Z axles to the 260-Z axles, once done, would you have the original 240-Z ones available?

    What else needs to be changed out to perform this swap? I would need this as well.

    Thanks for any replies.

    Joseph
    09/71 Datsun 240z (Semi-retired)
    1969 Datsun 1000 (Daily Driver)

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    hi got a werid stub axle flange here wondering if anyone can identify it fits 260z or 280z 27 spline stub axle but looks different and is 4mm longer not sure if it will work any ideas be good thanks
    its the one on the left

    mick
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    Is it possible that it's a 2+2 Stub axle? If it's 4mm longer it would seem logical given the 2+2's longer wheel base. Then again I don't see why it would be neccessary to have longer stub axles.

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    The 2+2 ones are the ones on the right, I dont think it would be a good idea to mix and match lengths, as it would affect the length of the axle as the end of that flange pushes against the inner bearing and would dictate how far out it sits? Might not be any problem if its only 4mm, infact 4mm of extra length holding the spline may be a good thing, unless it binds up the CV joints and breaks a cage letting the whole lot go leading to a heap of flogging going on.
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    Thumbs up

    Quote Originally Posted by 240 in OZ
    Mick/Gavin

    I checked out the stub axles which are in my car over the weekend and it looks like they have been changed out from the original 240-Z to the later 260-Z with the bumps on them.

    With either of you contemplating the swap from your 240-Z axles to the 260-Z axles, once done, would you have the original 240-Z ones available?

    What else needs to be changed out to perform this swap? I would need this as well.

    Thanks for any replies.

    Joseph
    Hi Joseph I received my stub axles from Zkid however I'm not sure when I'll get around to installing them yet. I want to get new rear wheels bearings and possible convert to rear discs at the same time.

    If your not in a hurry I'll keep you in mind when I finally do make the swap. In all honesty I have been so busy I haven't even checked if my Z already has the 260z style ones.

    Cheers,
    Gavin.

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    Hello Gavin

    Many thanks for the reply. I am currently waiting to hear back from Mick re a trade with him, ie his 240-Z stub axles for my replaced 260-Z stub axles as he wouldnt mind having a spare set. Just waiting to see photos and then arrange postage.

    If something does happen here I would be glad to take you up on your offer, pending confirmation that they are indeed the correct 240-Z style stub axles.

    There is no hurry here.

    Thanks again.

    Joseph
    09/71 Datsun 240z (Semi-retired)
    1969 Datsun 1000 (Daily Driver)

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