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Why won't this work?

Discussion in 'Suspension' started by MyToyTaco, Apr 28, 2009.

  1. Apr 28, 2009 at 7:21 PM
    #1
    MyToyTaco

    MyToyTaco [OP] ╒╪╕

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    Ok, i'm at the drawing board. Watch out.

    Everyone says that combining lifts is bad for front end components, specifically using OME 885 coils with Bilstein 5100's set higher than ZERO. This makes sense, kind of.

    Here's my setup:
    - OME 885 coils, with top plate.
    - 5100 shocks, set at ZERO.
    - Do NOT have diff drop.
    - TC UCA's - not on now, but will be in a week or two.

    If I understand correctly, the diff drop lowers the CV angle to accommodate lift.

    If the diff drop = 1 inch, and the .85 setting on the 5100's = slightly less than an inch..

    Is it safe to say that I can add the diff drop, and raise the 5100's from 0 to .85 to achieve a little under 4" of lift and not have any problems with CV angles or anything else? Seems to me this would work, but I'm no mechanic.

    Can I get some expert opinions on my drawing please?


    ((Chris :boink:))



    Thanks :p
     
  2. Apr 28, 2009 at 7:23 PM
    #2
    TRD4x4858

    TRD4x4858 Taco Traitor!

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    The only thing that comes to mind is that you'll have a stiffer front end since youll be compressing the springs an inch, but other than that I dont see a problem
     
  3. Apr 28, 2009 at 7:25 PM
    #3
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    i think u'd still be applying a greater pressure to the lower ball joints as well as a greater angle on the uca/uniball when u get it

    i had my CO's at 3.25" w/ a diff drop and the fins were all over each other
     
  4. Apr 28, 2009 at 7:25 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    You are forgetting that a 1" diff drop only drops the diff 1/2" at the axels.
     
  5. Apr 28, 2009 at 7:25 PM
    #5
    MyToyTaco

    MyToyTaco [OP] ╒╪╕

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    I took that into consideration also, i figured i'd do it and see how it rides.. (rough ride)
     
  6. Apr 28, 2009 at 7:26 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Presure on the lower ball joints isnt going to increase. The weight of the vehicle is not going to change, and the lower ball joints are what hold the vehicle off the ground.
     
  7. Apr 28, 2009 at 7:27 PM
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    TRD4x4858

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    The TC uniballs are supposed to offer another inch of travel correct? so I really dont see the harm, another half in on the CV's wont make them explode
     
  8. Apr 28, 2009 at 7:27 PM
    #8
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    but shouldnt the BJ angle change b/c of the greater push from the suspension?
     
  9. Apr 28, 2009 at 7:28 PM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FWIW, the 5100's are designed to give lift on the factory springs. 14" 540# rate. If pre loading a 16" 590# rate spring, the lift will be more. Dont do it.
     
  10. Apr 28, 2009 at 7:28 PM
    #10
    FlawedXJ

    FlawedXJ mall crawlin', web wheelin', concrete cowboy

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    but the increased angle would change the direction that the pressure is applied....different weight distributions cause different forces depending on how the mass is applied....Isn't this correct?
     
  11. Apr 28, 2009 at 7:29 PM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yes, the angle will change, but the stock lower ball joint can accept the angle.
     
  12. Apr 28, 2009 at 7:29 PM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yes, but it shouldnt affect the lower ball joint. Its a beefy unit.
     
  13. Apr 28, 2009 at 7:30 PM
    #13
    MyToyTaco

    MyToyTaco [OP] ╒╪╕

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    when used with 885's, will lift more than .85 ?
     
  14. Apr 28, 2009 at 7:30 PM
    #14
    FlawedXJ

    FlawedXJ mall crawlin', web wheelin', concrete cowboy

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    I actually have a jeep now. Imagine that.
    true. Just saying the moment of the arm would be affected and thus caused a force shift throughout the entire part. Possibly causing stress elsewhere.
     
  15. Apr 28, 2009 at 7:30 PM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Much more stiff, as he wants to compress a spring with a 590# rate.
     
  16. Apr 28, 2009 at 7:31 PM
    #16
    TRD4x4858

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    I believe its worth a try, cant really sit here and say much since ive never seen it done
     
  17. Apr 28, 2009 at 7:32 PM
    #17
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yes. Lifting it more than what you have is going to quite possibly grenade your CV's.
     
  18. Apr 28, 2009 at 7:33 PM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I have tried to compress the 885's and install them on a shock with 1" more preload. I would estimate that the compressed 885 would be near 750# spring rate.
     
  19. Apr 28, 2009 at 7:34 PM
    #19
    MyToyTaco

    MyToyTaco [OP] ╒╪╕

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    Ok. I'm assuming it's not a good idea to double the diff drop length? then that becomes a weak point and a disaster waiting to happen...?
     
  20. Apr 28, 2009 at 7:38 PM
    #20
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    No. I dont think a diff drop should even be used unless a last resort.
     
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