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  1. #1
    RC Racer
    Join Date
    May 2011
    Posts
    205

    Suspension arm replacement

    Got me emax just a few weeks ago and
    Broke the right front suspension arm. Is there
    any step by step instructions available
    to replace it? It looks fairly easy but it would save
    me a lot if time not guessing how to do it in proper
    Order. Thanks for any help.

  2. #2
    RC Qualifier
    Join Date
    Mar 2011
    Location
    Kansas
    Posts
    537
    Welcome to the club, that was the first thing I replaced on mine. There's not an "official" guide but it's pretty easy:

    REMOVAL
    1. Remove tire, hex adapter and pin
    2. Remove shock
    3. Disconnect steering linkage and Pillow Balls from Axle Carrier
    4. Separate the Axle Carrier from the Axle Stub and set aside
    5. Remove the E-Clips from one side of the A-Arm. If the pins arenít bent, you can reuse them.
    6. Gently tap the pins out. If you donít have anything else, you can use another hinge pin to give it a push. Be careful not to damage the pin. If the original pins are really messed up, you may have to pull it out with vice grips or use an old pin to tap it out.
    7. If youíre using stock A-Arms set the Caster Spacers aside Ė remember which position theyíre in.
    8. Now that itís disassembled, inspect the area for any damage. If everything checks out, now is a good time to see if the pins slide into the bulkhead without any resistance (I did this last night and found out that my bulkhead was starting to deform where I bent the pin).

    INSTALLATION
    Follow the directions in reverse & make sure to use your exploded diagrams for a reference.

  3. #3
    RC Qualifier
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    Apr 2011
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    Va ...for now...
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    the easiest way i have found to do this is to remove the whole front or rear broken section form the chassis, take off the skid plate, undo the drive axel, PULL SUSPENSION APART, undo the shocks from the broken side, remove the bumper and the bottom screws from the cross brace on the broken side to shift the bumper bracket up and out of the way, then it should be easy access to the control arm screws and spacers with no problem.
    it should just pull ways from the axel carrier once you remove the hubs or adaptors.

    then reverse order to put back on.......

    now this is not the only way to do this, there are other ways, and im sure it could be done without taking it off the chassis, but its just the way i rather do the job. easier for me.....
    Last edited by seventwo99; 06-12-2011 at 07:43 PM.

  4. #4
    RC Racer
    Join Date
    May 2011
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    205
    Thank you for the input. Should I buy the upgraded suspension arms while I have it apart?
    I don't remember hitting anything very hard so I don't know
    Why it broke. I certaintly didn't "T" bone anything.

  5. #5
    RC Qualifier
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    Mar 2011
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    Kansas
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    537
    Good point. That would make it easier. I was thinking about the actual procedure, not getting everything out of the way first.

    kirwinjd - If you have a habit of breaking things (like some of us) then that might be the way to go. Personally, I have all RPM A-Arms. Just to be on the safe side, it's always a good idea to have spare hinge pins.
    Last edited by GaiginRC; 06-12-2011 at 08:05 PM. Reason: More Info

  6. #6
    RC Qualifier
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    Apr 2011
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    Va ...for now...
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    Quote Originally Posted by GaiginRC View Post
    Good point. That would make it easier. I was thinking about the actual procedure, not getting everything out of the way first.

    kirwinjd - If you have a habit of breaking things (like some of us) then that might be the way to go. Personally, I have all RPM A-Arms. Just to be on the safe side, it's always a good idea to have spare hinge pins.
    no prob gaiginrc,
    thats what this forum is for.....helping out,
    one person gets it one way and someone else another, and in the end everything will be mentioned and figured out.

  7. #7
    RC Racer
    Join Date
    Dec 2010
    Posts
    170
    I usually pul the entire end I am working on also. Just makes it easier for me.

    I highly recomend RPM A-arms, great stuff and have a lifetime warranty. I keep one extra set (1upper 1 lower) to swap on, then return the broken piece to the LHS.

    You don't have to hit anything substantial to break these thing's, they weigh 12-13 lbs and go a good 20 mph even in stock form. And they are made out of plastic by and large lol.

  8. #8
    RC Racer
    Join Date
    Mar 2011
    Location
    Germany
    Posts
    182
    Quote Originally Posted by jrgunn5150 View Post
    I usually pul the entire end I am working on also. Just makes it easier for me.

    I highly recomend RPM A-arms, great stuff and have a lifetime warranty. I keep one extra set (1upper 1 lower) to swap on, then return the broken piece to the LHS.

    You don't have to hit anything substantial to break these thing's, they weigh 12-13 lbs and go a good 20 mph even in stock form. And they are made out of plastic by and large lol.
    +1 on the RPM. I love mine and their parts take blows like no other
    1/16 Slash, 1/16 Summit, T-Maxx .15, E-Maxx 3908

  9. #9
    RC Racer
    Join Date
    May 2011
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    205
    Thanks again everyone. I bought the better arms today.

  10. #10
    RC Qualifier
    Join Date
    Mar 2011
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    477
    front lower arm was the first break on my emaxx
    Slash 3s 2150kv
    Mod1 27/36 61mph

  11. #11
    RC Racer
    Join Date
    Jan 2011
    Location
    nunya business
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    239
    take the one screw that goes into the arm from the carrier and then take off the hinge pin and then undo the shocks and your done simplest way to do

  12. #12
    RC Champion PowerToTheMaxx's Avatar
    Join Date
    Sep 2010
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    Chicago, IL
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    2,329
    I never had a problem with A-Arms breaking, the pins always broke first for me. And it's almost impossible to break a RPM arm, especially if you have the stock brushed system. Just relise that you go from 4 mounting posistions to 3 and the shock screws have been known to strip out of the RPM plastic on ocassion.
    This parrot is NO MORE!!! This is an ex-parrot!!!

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