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  1. #1
    El Diablo
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    Rebuilt the lower control arm today

    MaxPF helped with some Hummer projects today: rebuilt the passenger side lower control arm (new bushings and ball joint), swapped out the diff, put a new diff mount on the driver's side, swapped in a new axle since my last new axle shot out all of its grease. And put on a new skid plate. And new axle seals. I think we spent about seven hours on these projects.

    The LCA isn't really that fun to do. Took about 10-15 minutes to get the forward bushing out of the control arm, and another 30+ to put the new one it. The bushing has rubber at each end that's wider than the LCA opening and the bushing do not easily go through that hole. It was a fight it until you think you're going to break it kind of deal.

    The rear bushing sits inside the crossmember. It wasn't likely going to come out using a standard ball joint press, or at least the kit that I rented from O'Reilly. MaxPF had to innovate some solutions with parts from the garage, including Cummings head bolts and other miscellaneous parts. Probably 45 minutes messing with this bushing too.

    The ball joint was stubborn but finally came out with an impact and the ball joint press. A nice feature of the OEM replacement is that it has a greasable fitting.

    Not sure I would go through this project again. It was a heck of a lot of work getting the LCA out of the truck and back in, including three attempts at adjusting the front bushing to slide in just right into the frame crossmember.

    One nice result was that my driver's side diff mount - original and six years old - had not failed. I replaced it anyway. I tore up 2 passenger side mounts and five or six crossmember mounts, but the rubber driver's mount has held up. Perhaps because more of the weight of the diff is on the passenger side, or perhaps the drivetrain torque has something do to with it. I don't know.

    The new skid plate was interesting (the black ribbed one, not the aluminum splash shield). There are vent holes in the vertical bend on the passenger side, maybe to allow cooling air for the diff. Also there are two rear mounting holes on the passenger side to accommodate the two different type of OEM crossmembers. And the two leading bolt holes are now both slots vs. previously one was a slot and one was a hole. Makes it a bit easier to move it around and get it lined up properly.

  2. #2
    Super Swamper
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    Glad to hear you got everything done
    2016 RAM 2500 Power Wagon
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  3. #3
    El Diablo
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    I wish it was everything! But it was what was needed to be done before it went off road again.

  4. #4
    Mall Crawler

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    Don't you mean a chrome skid plate? And I know I already told you, really really liking the new license plate. Oh and glad you got it all done today
    Last edited by Zach; 05-19-2013 at 01:21 AM.
    2005 H2 Adventure

  5. #5
    AGNTSA

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    Quote Originally Posted by alrock View Post
    The rear bushing sits inside the crossmember. It wasn't likely going to come out using a standard ball joint press, or at least the kit that I rented from O'Reilly. MaxPF had to innovate some solutions with parts from the garage, including Cummings head bolts and other miscellaneous parts. Probably 45 minutes messing with this bushing too.
    There ain't no "G" in Cummins! Into the penalty box with ya!!

    For the record, Alex kicked butt on this project. I struggled trying to get the new bushing in the control arm, with no success. He gave it a whack, and had it done in 15 minutes. I was so ashamed

    Then there was the fact I was hobbling around (bad ankle), my right shoulder and bicep was giving me fits, I couldn't hardly get up off the creeper, and generally just feeling old. I'm not trying to make excuses (ok, yes I am!), but like I said, Alex totally kicked butt. I actually felt pretty useless on this project.

    We did learn from our mistakes. If he needs to replace bushings and the ball joint on the other arm sometime in the future, we could probably knock it out in a couple hours tops. If he does without my "assistance", probably an hour or less
    Last edited by MaxPF; 05-19-2013 at 02:15 PM.
    Brotherhood of Handshakers Charter Member #1
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    1991 Chevrolet K5 Blazer, Cummins 5.9L 12V P-pumped
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    MaxPF's Wretched Excess Build Thread

  6. #6
    Mall Crawler

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    So Alex wasn't in his normal supervisor position supplying beer and pizza? Lol
    2005 H2 Adventure

  7. #7
    a.k.a. "The Jackal"

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    Glad you got it done...ball joints are a PITA. I did them on my brothers jeep and it was a nightmare.

    Since when did oem ball joints have grease fittings? I've had one ball joint go out...it was in great shape till the boot tore and it got contaminated. I bet if it was greasable it would still be going strong
    Squeaky3: 06 H3 ALPHA D70 front/Eaton HO72 rear 5.13 gears, custom crossmember for long arms, lockers, 4:1 T-case, v8 swap, hybrid cage, Warn 12k Custom bumpers....do it all vehicle

    "H3 front axles are like drunk cheerleaders....just use em until they get mouthy...then toss em and get another." -anonymous


  8. #8
    Baja
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    Glad to hear ya made head way.
    Chris

  9. #9
    El Diablo
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    This replacement ball joint by AC Delco has a greaseable fitting. From the factory there's no greaseable fitting. http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

    We did spend a couple of hours "figgering stuff out" but once we had a solution then things would move along. But isn't that how it always works?

  10. The Following 2 Users Say Thank You to alrock For This Useful Post:

    06 H3 (05-19-2013), Portager (09-24-2013)

  11. #10
    All Terrain
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    I did bushings and the ball joint on my driver upper control arm and that's not something I'd wish on anyone. What a royal pain. Glad you got it knocked out.

  12. #11
    Bogger
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    Sounds like a chore and a half. Just had my diff bushing and bracket replaced last week.
    2008 H3, Leveled, 315/75/16 Goodyear Duratrac's, CBUCP, Air Doc, Aries Brushguard, Rola Roof Rack, Rocky Road Rock Rails, K&N Filter, Homemade Winch Mount, Badlands 12,000 Winch, Taillight Guards, Purple Cranium Diff Cover
    Love Life, Live Life, and Love Your Hummer !!!!!!



  13. #12
    El Diablo
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    And more stuff to be done tomorrow. A couple of bolts stripped out on the driver's axle tube so I'm having parts swapped out tomorrow. I also think I have a broken motor mount on the passenger side, so that's up for tomorrow too.

  14. #13
    Mall Crawler

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    Quote Originally Posted by alrock View Post
    And more stuff to be done tomorrow. A couple of bolts stripped out on the driver's axle tube so I'm having parts swapped out tomorrow. I also think I have a broken motor mount on the passenger side, so that's up for tomorrow too.
    Might want to replace both mounts at the same time. Usually with them once one is gone, the other isn't too far behind
    2005 H2 Adventure

  15. #14
    a.k.a. "The Jackal"

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    I am not looking forward to this...I am having a bizarre clunk, almost like the steering clunk we always used to get before we got our new steering mods. I pull the skids to see steering and had zero movement as my sister is turning the steering wheel the ball joint catches my eye. As the wheel is turned the metal cup comes through the boot and pinches and bends the cup and the clunk is from the balljoint. Scary ****, especially doing 70 mph with this bizarre steering wheel wobble (assumed it was tires needing to be balanced, I guess not!)

    When I installed the rancho lift my original ball joint with 80k miles on it was toast. Instead I used bebes old LCA and swapped it entirely, you know probably a LCA with more abuse and more miles then mine! Her LCA ball joint didnt have any play though. Now almost 2 years later this one is shot. I wheel next weekend and I have to change it out.

    Alex, seeing you have done this do you think it would be easier to swap the ball joint on my spare LCA and then change the LCA or just bite the bullet and do it the conventional way you and maxpf did?

    I will be using an oriellys ball joint tool.
    Squeaky3: 06 H3 ALPHA D70 front/Eaton HO72 rear 5.13 gears, custom crossmember for long arms, lockers, 4:1 T-case, v8 swap, hybrid cage, Warn 12k Custom bumpers....do it all vehicle

    "H3 front axles are like drunk cheerleaders....just use em until they get mouthy...then toss em and get another." -anonymous


  16. #15
    Mr. Beretta
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    Quote Originally Posted by abearden View Post
    I did bushings and the ball joint on my driver upper control arm and that's not something I'd wish on anyone. What a royal pain. Glad you got it knocked out.
    You replaced the upper control arm bushings and ball joint? Where did you get them from?

    Don't know anything about Hummers, but I do speak Malamute.


 

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