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Thread: Front upper control arms on 2005 LJ

  1. #21
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    Default Re: Front upper control arms on 2005 LJ



    Paul previously posted:
    "The only other thing I can think of is that you do have a lift and sway bar disconnects, but your bumpstops are stock length."

    So you think the front axle could articulate too much when the sway bar disconnects are off? I'm unsure if the bump stops are stock length or have been modified. Haven't looked into it yet.

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    Default Re: Front upper control arms on 2005 LJ



    That's what I thought too. It would be an easy fix if it is...

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    Default Re: Front upper control arms on 2005 LJ



    It's worth looking into. It also may be unnecessary with the JKS upper control arms. These arms have a spherical joint on the frame side, which allows some twisting when flexing the suspension. The stock bars only have rubber bushings in this location, so they must travel in a vertical plane. Any twist on the stock uppers would be absorbed in the body of the component.

    I'll have to research the bump stops and see if they need to be adjusted, or if the replacement uppers can eliminate that from the list of concerns.

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    Default Re: Front upper control arms on 2005 LJ



    Bump stops are to limit travel so your tires don't rub and to prevent any other suspension parts from hitting anything.

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    Default Re: Front upper control arms on 2005 LJ



    open_circuit previously posted:
    "It's worth looking into. It also may be unnecessary with the JKS upper control arms. These arms have a spherical joint on the frame side, which allows some twisting when flexing the suspension. The stock bars only have rubber bushings in this location, so they must travel in a vertical plane. Any twist on the stock uppers would be absorbed in the body of the component.

    I'll have to research the bump stops and see if they need to be adjusted, or if the replacement uppers can eliminate that from the list of concerns."

    I replaced mine when I lifted my jk. Replaced is not quite correct. I left my stock ones in and added a hockey puck which I adhered with contact cement to point where the stock stop hits near the axle.

    I can post a pic if interested.
    ___________
    Tom
    -.- . ----- .-- - -.-.

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    Default Re: Front upper control arms on 2005 LJ



    Clank! ... if that sound is coming from your suspension, that's not a good thing. If you just bottomed your springs and heard that metallic clank, it probably means you banged metal on metal and are at risk of bending or breaking some part of your suspension. And that means you probably need a reminder on the value of bump stops. Let's take a look at the function of a bump stop and some of the various applications for them.
    The main purpose of a bump stop is to serve as some final suspension cushion to keep the metal parts from coming together or from traveling too far, which might in some way damage the suspension or chassis. In the case of a coil-sprung suspension, you'll want the bump stop to stop movement before a condition know as "coil bind," in which the coil spring is completely collapsed and can compress no further.

    https://www.fourwheeler.com/how-to/0...ump-stop-tech/



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    Default Re: Front upper control arms on 2005 LJ



    Parts are all expected to arrive by Friday. Anyone want to join me on Saturday for some wrenching?

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    Default Re: Front upper control arms on 2005 LJ



    I'm available Saturday.

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    open_circuit (November 12th, 2019)

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    Default Re: Front upper control arms on 2005 LJ



    I could be down...I have to go to the airport on Sat to pick someone up, but I am not sure what time that would be...
    Are there any tools you would need?
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon

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    open_circuit (November 12th, 2019)

  12. #30
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    Default Re: Front upper control arms on 2005 LJ



    Impact wrench would be helpful, as well as an extra jack (3 ton?). I only have a decent bottle jack, so if we need to try to jack up the axle to get the arms in place, a second would be handy (one in front/back of the differential to change pinion angle, perhaps). I can pull the emergency bottle jack out of the Jeep to do this if needed, but it is a pretty slow tool for the job.

    Jim offered an impact wrench when we were wheeling this past weekend, but so I'm hoping he brings that. The hard parts of the job are probably breaking free the rusted bolts on the arms and pressing out / in the bushings. I planned to borrow or rent a ball joint press from a local auto shop to deal with the bushings, but if you have a ball joint press or a better tool for the job, that would be welcomed as well.

    I have a couple of 2-ton jack stands and a couple of 3-ton jack stands, so I should be good there. Already have a decent set of mechanics tools and big breaker bar + torque wrench. I'm sure there's something else I haven't thought of, though. Trying to type out the list here, to help reconcile what I have against the original post of what we need to do to see if there are gaps.

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    Default Re: Front upper control arms on 2005 LJ



    open_circuit previously posted:
    "I planned to borrow or rent a ball joint press from a local auto shop to deal with the bushings"

    This is the one that came to my mind....but I don't have one. I do have a big pickle fork and hammer which can be useful for separating steering linkages from the knuckle if needed. I also have an impact gun and a number of other helpful air tools, but they are all air tools which means they need a decently large compressor to keep running for very long.

    I also verified I don't have to be to the airport until 8:30pm, so I can definitely help out during the day. keep us posted
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon

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  15. #32
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    Default Re: Front upper control arms on 2005 LJ



    Tools available:
    Torque wrenches
    Air compressor - not large but usable enough
    Air impact wrench & sockets
    Wheel chocks
    Short jackstands
    Tall jackstands
    Bottle jack
    Floor jack
    Punches
    Heavy mallet
    Pry bars (tire irons)
    Cutoff saw and discs (what I used when needing to remove bushings / springs from the jeep - slip the cut-off blade inside the mounting perch and cut the bolt into pieces)
    Kerosene turbo heater
    110v AC power portable heater

    If you think of anything else - post it up and I'll check.

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    open_circuit (November 12th, 2019)

  17. #33
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    Default Re: Front upper control arms on 2005 LJ



    Looks like a good list with very little overlap of what I already have. I imagine tall jackstands will be helpful, in particular, since we need to get up to the frame.

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    Default Re: Front upper control arms on 2005 LJ



    May want to start the penetrating oil regimen tonight if you are worried about the hardware. A ratchet strap or two may come in handy as well. Other plans Saturday or i would jump in. Shouldn't take too long at all (famous last words).

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    open_circuit (November 12th, 2019)

  20. #35
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    Default Re: Front upper control arms on 2005 LJ



    I have a can of PB Blaster in the garage. I plan to douse the bolts daily until Saturday.

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    Default Re: Front upper control arms on 2005 LJ



    Jim previously posted:
    "Tools available:
    Torque wrenches
    Air compressor - not large but usable enough
    Air impact wrench & sockets
    Wheel chocks
    Short jackstands
    Tall jackstands
    Bottle jack
    Floor jack
    Punches
    Heavy mallet
    Pry bars (tire irons)
    Cutoff saw and discs (what I used when needing to remove bushings / springs from the jeep - slip the cut-off blade inside the mounting perch and cut the bolt into pieces)
    Kerosene turbo heater
    110v AC power portable heater

    If you think of anything else - post it up and I'll check."

    So, will all that fit in the YJ, or the Honda (sorry - can't remember what your DD commuter car is)....
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon

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    Default Re: Front upper control arms on 2005 LJ



    I can join on Sat. Have a cheap harbor freight impact gun, and the bar James was discussing.
    I am not a mechanic but can lend moral support and drink beer with the best of em.
    ___________
    Tom
    -.- . ----- .-- - -.-.

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    open_circuit (November 12th, 2019)

  24. #38
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    Default Re: Front upper control arms on 2005 LJ



    Planning on sat...I'll post as we get closer if that changes....I can bring lots of tools, heater, etc....Maybe I'll try to cruise up in the WIllys
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon

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    open_circuit (November 12th, 2019)

  26. #39
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    Default Re: Front upper control arms on 2005 LJ



    Bushings are in hand and the control arms are slated to be delivered later today. Still looking good for tomorrow. Going to scrounge a ball joint press or bushing press after work today.

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    Default Re: Front upper control arms on 2005 LJ



    Planning on being there - as long as the Willys can make it there....
    ___________
    James Orofino
    1970 CJ5
    1958 Willys Wagon

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