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K-members

This is a discussion on K-members within the Suspension and Handling forums, part of the General Help category; Who's do you all like? What are they worth used?...

  1. #1
    Junior Member Bruce Hemminger's Avatar
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    K-members

    Who's do you all like? What are they worth used?

  2. #2
    Crazy Canuck ! Eugenio_SS's Avatar
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    english... please !
    on a more serious note... you asking about stock k-member ? how much they are worth ?
    if you are looking for aftermarket, i'd stay away from BMR ones... I'd trust the stock one WAY more.
    The only good alternative k-member that can take the abuse and be able to handle cornering withouth the whole front end collapsing would be the UMI k-member.
    Eugenio_SS
    almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)

  3. #3
    Member silverz28camaro's Avatar
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    Quote Originally Posted by Eugenio_SS View Post
    english... please !
    on a more serious note... you asking about stock k-member ? how much they are worth ?
    if you are looking for aftermarket, i'd stay away from BMR ones... I'd trust the stock one WAY more.
    The only good alternative k-member that can take the abuse and be able to handle cornering withouth the whole front end collapsing would be the UMI k-member.
    honestly how many times have you seen a k-member collapse, did it happen to you, if so pics?

    i'm getting ready to purchase to bmr k-member it is 5 lbs lighter then others and at the same price, the advantage with these it that you gain a lot of clearance under the car, so it you do your own wrenching this may come in handy, plus its a total of 35 lbs off the nose with a-arms

    its not a wear item so buying one used won't save you muck if you can even find one.
    2000 auto camaro
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    11.899 @ 114.44 1.686 60' full exhaust, lid, tune, nitto 245/50-16 555r 3.73 moser 12-bolt 2800 fuddle, ls6 intake manifold, slp under drive pully,fiberglass hood, bmr k-member

  4. #4
    Senior Member mrr23's Avatar
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    i have the bmr k-member, upper and lower control arms. no issues yet. drive the car everyday. i'll keep people posted.

    apparantly, bmr has had a few crack.

    umi makes one that has two cross bars, instead of one.

    here's the bmr i have




  5. #5
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    I had a lot of input on the UMI K-member. Check it out and tell me which you think is stronger: http://www.stranoparts.com/partdetai...D=18&ModelID=7

    Remember, all the lateral load generated by the car is put into the k-member since the LCA's are bolted to it. Hence the reason for the double cross-tubes, and on the RR version the gussets. Yes, a UMI one is heavier than any single tube k, for obvious reasons. But there are just some places I think that you need some beef. I woudln't want an aluminum crankshaft...

  6. #6
    Paid 2 Post Daycrew SexOnWheels's Avatar
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    Agreed, I have the RR version on the way from 'Santa':

    Road Race K-member from UMI

  7. #7
    Member silverz28camaro's Avatar
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    Quote Originally Posted by Sam Strano View Post
    I had a lot of input on the UMI K-member. Check it out and tell me which you think is stronger: http://www.stranoparts.com/partdetai...D=18&ModelID=7

    Remember, all the lateral load generated by the car is put into the k-member since the LCA's are bolted to it. Hence the reason for the double cross-tubes, and on the RR version the gussets. Yes, a UMI one is heavier than any single tube k, for obvious reasons. But there are just some places I think that you need some beef. I woudln't want an aluminum crankshaft...
    from the looks of it i think the umi is better also, you still save 25lbs and get a stronger part. Time to get the debit card out.

  8. #8
    Senior Member kool-aide's Avatar
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    ok i'm searching for a thread that talks about changing the k-member. Any one out there wanna take a shot at explaining how you would change the stock k-member for an after market, like UMI, Spohn, etc.

    How would you support the motor and trans?

    thanks

  9. #9
    Senior Member mrr23's Avatar
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    they make an engine cradle. basically, it's a bar with supports that sits on the inner fenderwell railing. then, you chain the motor to it.

    here are pics of my motor swap. i pulled the motor from the bottom. it'll give you an idea of how to do it.

    http://stealthram.com/engineswap.htm

  10. #10
    Senior Member kool-aide's Avatar
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    yeah i saw your picks on the web site. BTW, nice swap.

    I was wondering if the k-member could be changed without pulling the motor.

    since i have a nice camaro w/ full under body coating i have no reason to really part with it. so that leaves me with lots of parts and bushings i would like to replace. I figure I would work on the hard things first, like the k-member. I loved abusing myself so much on the motor mounts, why not donate a little more blood.

    And I bet it made it real easy doing a motor pull on your lift... very nice doco on the web site.

    thanks

    kool-aide

  11. #11
    Junior Member farmer_ron_99's Avatar
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    I noticed that in a few of the pics there are very solid looking rod ends. How well do these work on a daily driver? (comfort and durability)

  12. #12
    Senior Member mrr23's Avatar
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    Quote Originally Posted by kool-aide View Post
    I was wondering if the k-member could be changed without pulling the motor.

    yes it can. that's why i talked about the engine cradle. it'll hold the motor up while you drop the k-member. you could also use an engine hoist.

  13. #13
    Senior Member mrr23's Avatar
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    Quote Originally Posted by farmer_ron_99 View Post
    I noticed that in a few of the pics there are very solid looking rod ends. How well do these work on a daily driver? (comfort and durability)


    makes the ride much more responsive because there is no rubber bushings to move around.

  14. #14
    Senior Member kool-aide's Avatar
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    Quote Originally Posted by mrr23 View Post
    yes it can. that's why i talked about the engine cradle. it'll hold the motor up while you drop the k-member. you could also use an engine hoist.
    any idea where you can find an engine craddle? I figured a hoist would work, but don't have one, yet.

  15. #15
    Senior Member mrr23's Avatar
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    Quote Originally Posted by kool-aide View Post
    any idea where you can find an engine craddle? I figured a hoist would work, but don't have one, yet.
    harbor freight. the last one i priced out was $175.00

  16. #16
    Senior Member kool-aide's Avatar
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    ah, should have known. Every one goes there for everything, thanks.

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