Roblaw

1975 280z rear coil springs

    Recommended Posts

    Hey all, I've been searching for new rear coils for the Z. Really sags back there and front looks like a "gasser" in comparison. Seems aftermarket only offers all 4. I've read about Chevette springs but unsure about going that route. Anyone know of a good source to get stock height rear coils?

    Share this post


    Link to post
    Share on other sites

    This place is really just one guy.  You could call him and see if he'll sell you just two.

    https://zcardepot.com/collections/suspension/products/coil-spring-set-stock-and-lowered-240z-260z-280z

    Edit - also, just thought of this, there are places that will wind you a spring.  The spring data is in the FSM.

    image.png

    Edited by Zed Head

    Share this post


    Link to post
    Share on other sites

    Chevette springs are relatively easy to do. I did them on my 260Z. It might take a couple of test fittings to get the height where you want it. They are pretty firm as far as springs go.

    Share this post


    Link to post
    Share on other sites

    Might consider that if the rears are sagged a lot, the fronts might be sagged a little.  So there will still be a mismatch.

    There's always used springs too.  @zKars

    Share this post


    Link to post
    Share on other sites

    I looked at the spring rate for the Chevette coils on Rockauto. They were close to the OEM rate Zed provided but the spring lengths were a little shorter.

    Steve, is the 280z rear end heavier than the 260z? I'm thinking the Chevette coils are pretty close in rate to OEM for a 280z, maybe a little softer in fact.

    Unless the Rockauto numbers are arbitrary. They are real cheap. I may just get some and see how it goes.

    Share this post


    Link to post
    Share on other sites

    Measure from the rocker panels to the ground, front and back.  There's nothing dramatic in your picture.

    Try lifting the back end up by hand also, I had a strut that would stick.  And, if you find that you only need 1/2 inch try new struts first.  The gas struts will raise the car by about 1/2 inch.

    Share this post


    Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now