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Thread: Do i need to replace the rear suspension springs? Car too low in the rear?

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    Default Do i need to replace the rear suspension springs? Car too low in the rear?

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    This is my Project car! a 1972 240z! I have noticed that the car seems to low on the rear suspensión and always bangs on Street bumps! Do I need to replace the whole shock absorber? or just the springs. If it were the springs which Brand is recommended? Is there a set that comes with shock absorbers that come with springs?

    1970 1978 Datsun 240Z 260z 280z Springs | eBay

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    Registered User Hunter260Z's Avatar
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    I would replace all 4 springs and shocks, and install bump stops on all corners. The best place to look, would be Motorsport Auto.
    Ray
    1974 Datson 260Z
    RLS30-27748 Matching #'s
    L26 Stock w/72 Round Tops
    Interpart Front Spoiler
    Addco Front & Rear Sway Bars
    My Very First Car
    Purchased 5/23/1974

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    No more body roll! SteveJ's Avatar
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    I used Chevette springs cut to size and KYB struts all around. It firmed up the ride and got rid of the bang from the bumps. That's the budget build. Of course, I would only do this if you are mechanically inclined.
    73 240Z
    74 260Z

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    Registered User tlorber's Avatar
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    By the picture, that car does not look like it is riding low. The springs may be too soft, but I doubt they are too short. I used Eibachs on mine. Got them from Motorsport.
    Tlorber
    '73 240 +/- done
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    I still think the rear springs could be soft. The car does look low in the rear. What Brand of springs is recomendable? Eibachs? I want a smooth ride with the correct height of the car!
    Last edited by jalexquijano; 09-24-2014 at 09:38 AM.

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    Nova Scotia,Canada,Earth Blue's Avatar
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    KYB shocks and regular Tokico springs work well.

    btw your car looks great! I love white Z's.


    Datsun 510, 240Z, 260Z, 280Z, 280ZX, 300ZX and Roadster parts available from Upgrade Motoring!
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    Registered User siteunseen's Avatar
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    Or save yourself some money and add a front spoiler.

    https://www.google.com/search?q=Xeno...+240z&imgdii=_

    Or spend some money and get these, Tokico HPK Kit NISSAN 260Z
    Last edited by siteunseen; 09-24-2014 at 03:08 PM.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Quote Originally Posted by Blue View Post
    KYB shocks and regular Tokico springs work well.

    btw your car looks great! I love white Z's.


    Datsun 510, 240Z, 260Z, 280Z, 280ZX, 300ZX and Roadster parts available from Upgrade Motoring!
    What about Arizona Springs? Since i only need to two rear ones? http://www.arizonazcar.com/springs.html

    Should i purchase this set?

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    Quote Originally Posted by jalexquijano View Post
    What about Arizona Springs? Since i only need to two rear ones? http://www.arizonazcar.com/springs.html

    Should i purchase this set?
    Just called Dave! He ran out of stock! What other alternative do i have to achive stock height and ride?

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    No more body roll! SteveJ's Avatar
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    I don't know anything about the fit & quality...
    Stagg 4 Shocks Springs That Fits 1970 to 1973 240Z Early 1974 260z | eBay
    73 240Z
    74 260Z

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    Quote Originally Posted by jalexquijano View Post
    What other alternative do i have to achive stock height and ride?
    If you're looking for stock ride, and height, you'll need to look for OEM stock springs.... I'm not positive, but I think pretty much anything out that is aftermarket lowers the car, and firms up the ride... Your best bet probably is either Ebay, or a salvage yard.

    The springs from Arizona Z Car states that they are "Considerably stiffer than stock" not what you're looking for
    Last edited by peng155; 09-25-2014 at 12:02 PM.

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    Just scored a used stock set of 2 front and 2 rear springs from a 1974 260z with 32,000 miles on ebay. will i be able to replace the springs on my car with these ones? Even though they are from a 260z? Any difference in the height amongst both of these years?

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    i could be wrong, but I think you will find that they are slightly different - besides after 40 odd years, won't they be worn as well ?

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    There are two types of 260Z's. One uses 240Z suspensions, the other uses 280Z suspension. The dimensions of the springs are in the FSM, in the two Suspension chapters. Measure your "new" springs and see which ones you got. The rear ones are not interchangeable, for sure, so if you got the 280Z style you'll need to keep looking.

    One way to raise the back of your Z would be to get 280Z strut insulators. They sit at the top of the strut and the 280Z insulators are taller than the 240Z's. Not a great way to do it, but if you can't get the springs it might get you by.
    1976 280Z, with some minor modifications

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    So should i just cancel my order and request a refund? its 80 dollars!

    These are the springs i purchased from a 1974 260z with 32,000 miles :



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    Last edited by jalexquijano; 09-26-2014 at 10:24 AM.

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    Just a question for you, is it possible you are missing part #13?
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    If I were you I would cancel the order. There is a .5 inch difference between the early model and late model springs for the front. Been there done that. Not sure on the back. The 74 springs also have a different spring rate.
    Ray
    1974 Datson 260Z
    RLS30-27748 Matching #'s
    L26 Stock w/72 Round Tops
    Interpart Front Spoiler
    Addco Front & Rear Sway Bars
    My Very First Car
    Purchased 5/23/1974

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    There are also two different spring perch heights on the 260z. You have to measure from the base of the tube where it joins the spindle,to the lowest point of the perch.Usually where the end of the spring end seats into the perch.The early model measures 9.25", the late model measures 9.75".This was how I came up with the difference in spring heights.

    Sorry I didn't want to confuse anyone. I had to find my notes going back to 2002.

    When i installed a late model spring perch with Motorsports springs the ride height was 0.5" to high. Hard lesson to learn.
    Ray
    1974 Datson 260Z
    RLS30-27748 Matching #'s
    L26 Stock w/72 Round Tops
    Interpart Front Spoiler
    Addco Front & Rear Sway Bars
    My Very First Car
    Purchased 5/23/1974

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