Lowering a leaf spring
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  1. #1
    Official RnS Addict StueyT's Avatar
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    Lowering a leaf spring

    Hi All,

    I know the easiest way to do it is to buy a reverse eye spring or remove a leaf, but.......

    If I was to remove the spring and turn it over, the spring sits flat, this would effectively give a 2" drop, but what problems would I come across doing this. The car in question is rear engined, with a transverse leaf spring front. I was curious to whether this would effect the handling or whther the spring would eventually break if fitted that way up, the car weighs next to nothing.

    Cheers,

    Stu.

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    I'm Not Jed Clampett stueeee's Avatar
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    Re: Lowering a leaf spring

    If you're just turning the whole spring upside down, the main leaf will be the only leaf doing anything on bump, and you'll have all the leaves working on rebound. Not sure that'll work too well even on a very light car.

    If the spring is flat, why not take the spring apart and reverse the main leaf only, that will lower the car, but the whole spring will be working.
    Stuart.
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    Official RnS Addict StueyT's Avatar
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    Re: Lowering a leaf spring

    Quote Originally Posted by stueeee View Post
    If you're just turning the whole spring upside down, the main leaf will be the only leaf doing anything on bump, and you'll have all the leaves working on rebound. Not sure that'll work too well even on a very light car.

    If the spring is flat, why not take the spring apart and reverse the main leaf only, that will lower the car, but the whole spring will be working.
    Genius I will have a look at it at the weekend, is there anything i should look out for when taking the spring apart? Do i need to lube the springs on rebuild?

    Cheers,

    Stu.

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    I'm Not Jed Clampett stueeee's Avatar
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    Re: Lowering a leaf spring

    Quote Originally Posted by StueyT View Post
    is there anything i should look out for when taking the spring apart? Do i need to lube the springs on rebuild?
    For your safety Before you take out the centre bolt which holds the spring together, make sure you have the spring clamped up in a vice. Undo the bolt and then unwind the vice, there should be a lot of tension leaf-to-leaf in the spring pack which could really hurt you if the spring flies apart.

    Before you put it back together, run over the spring leaves with a sanding disc in an angle grinder to remove any shallow notches where the leaf ends bear against the leaf below. Use the vice to clamp the spring up before you put the centre bolt back.

    I always put some moly grease on the leaves before I re-assemble a spring, theory being that it still lubricates when the grease dries out.
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    Official RnS Addict StueyT's Avatar
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    Re: Lowering a leaf spring

    Hi Stuart,

    Thanks for the safety tip, I will pull it off and give it ago.

    Cheers,

    Stu.

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    www.53catalina.co.uk 53catalina's Avatar
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    Re: Lowering a leaf spring

    You can also get liners to go between the springs. I have plastic liners between mine, sent over from California Pontiac Restorations, not sure if they are used on all cars though, someone else may know.

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