Is this E36 rear spring useable?

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  1. Is this E36 rear spring useable? 
    #1
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    Hi everyone, new poster here! And already I'm picking your brains....

    The back right of my 316i was sitting low, and I came to the conclusion it was a cracked spring(a common thing it seems). Anyway I picked up a second hand set of 4 BMW sports springs, and on one of the rear ones the powder coat has come completely flaked off at one end. It has a fair bit of surface rust now. They came off of a 328 with about 150k on the clock. All the others look in perfect condition.

    I was wondering what you guys thought as to whether it's still usable? I've heard various opinions looking around this forum already; some say it wouldn't be a factor in if spring could crack, and that you see springs with surface rust all the time. Others say it would be something to keep an eye out for to prevent
    .
    Also would it make a difference to the springs potential life that I'm fitting it to a lighter car than it was on before(4cyl vs 6)?

    Any advice much appreciated






    EDIT: This is in the wrong forum isn't it :/ could it be moved, cheers.
     
     

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    #2
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    Hey

    This is all in my opinion and have nothing to back it up

    But I would say that's ok and not a massive issue,
    Using springs of another heavier car may cause a stiffer bouncy ride and possible raise the ride hight (unless there lower then normal)

    Not much help I know
     
     

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    #3
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    The spring will be ok but i wouldn't use 328i springs on a 316i as they have different spring rates(the 328i engine is heavier so it will sit higher than a 316i)
    Also if the 328i had m-tech suspension the rates will be different again and lower.

    " I have done alot of stuff i am not proud of, and the stuff i am proud of is just disgusting"
     
     

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    #4
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    Cheers for the replies guys.

    So I know the higher springs rates will mean a stiffer, slightly harsher ride, the height will be offset by the fact that they're slightly lower springs than mine to start with I suspect. But honestly at this stage I'm not bothered about lowering or ride height; as long as the car runs well, that's my priority for now.

    Would it be a good compromise to just run the rear springs from the 328i? As the fronts don't urgently need doing.
     
     

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    seen worse....
    330i sport a big chunk of berlin...

     
     

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    #6
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    As it turned out, I ended up getting more springs, a pair of bog standard 316 rears, in very good condition.

    So those are going on, and these aren't. Thanks for the advice guys
     
     

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    #7
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    Okay so I got my springs and I stuck them on....and the fresh metal just served to make the problem even worse.

    The car rides as before; on the right rear, the top of the tyre just level with the arch. But now, I have about 2 inches of clear air above the left rear wheel, when I previously had about one. The car is sitting so wonky I'm nervous about driving it about! I'm kind of frustrated, absolutely everywhere I looked, people diagnosed it as a cracked spring. Hell, when I took them off it was clear as day;



    And yet the issue is now made worse with fresh springs. Very frustrating few hours. The axle was stiffer to move on the left hand side when I changed the units, but aside from that I didn't see anything drastically out of place. Anyone have any other suggestions of what it could be? I'm a bit impatient now if I'm honest, I'm supposed to be taking a road trip with some mates in a few weeks and without the car well, that goes down the pan.
     
     

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    #8
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    Anyone?
     
     

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