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  1. #1
    Moderator Pthorpe84's Avatar
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    Worn Anti Rock Arms

    I stumbled across these pics online and was curious if this is a common problem with the aluminum Antirocks? I know the aluminum is much softer than the rod itís connected too, so I can see how this would happen. Thoughts?




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    2015 JKU Hard Rock, 3.5" Game Changer-Rock Sport, 37" Toyo M/T, Overline Fenders, M/C Full Stinger Bumper, GenRight Fusion Rear Stubby Bumper, Poison Spyder Tire Carrier, M/C Rock Sliders, Warn Power Plant HD, Viair Constant Duty with Tank, 17" ATX Slabs, Evo Skid Plates, Cheap Chinese Lights, Factor 55 Flat Link, ApolloIntec Switch Pod, 48" Hi-Lift, Dynomax Exhaust

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  2. #2
    Jeep Owner Jegar's Avatar
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    Following....


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  3. #3
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    Iíve seen it plenty of times. Itís the nature of 6061 against a soft steel.

  4. #4
    Moderator Pthorpe84's Avatar
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    So I am assuming itís really not worth the weight savings or the extra dough on the aluminum arms. I wonder if the steel ones do this.


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    2015 JKU Hard Rock, 3.5" Game Changer-Rock Sport, 37" Toyo M/T, Overline Fenders, M/C Full Stinger Bumper, GenRight Fusion Rear Stubby Bumper, Poison Spyder Tire Carrier, M/C Rock Sliders, Warn Power Plant HD, Viair Constant Duty with Tank, 17" ATX Slabs, Evo Skid Plates, Cheap Chinese Lights, Factor 55 Flat Link, ApolloIntec Switch Pod, 48" Hi-Lift, Dynomax Exhaust

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  5. #5
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    I have been running my steel antirock arms for a long time.
    Not seen this issue with mine.

    With the aluminum and steel, you could also have some dissimilar metal corrosion causing part of this issue also.

    Todd
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  6. #6
    Moderator Pthorpe84's Avatar
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    Quote Originally Posted by Todd Ockert View Post

    With the aluminum and steel, you could also have some dissimilar metal corrosion causing part of this issue also.

    Todd
    Yep. Dissimilar metals is a concern and could be a contributing factor. The less noble will sacrifice itself to protect the more noble metal. All those NACE classes have finally paid off I guess. lol.

    This is another reason Iím hesitant to use aluminum parts on my Jeep. Yes I know the rate of deterioration will be minor with the two alloys, but my job makes me think way too much into it. After all, our aluminum wheels are seated on steel.


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    2015 JKU Hard Rock, 3.5" Game Changer-Rock Sport, 37" Toyo M/T, Overline Fenders, M/C Full Stinger Bumper, GenRight Fusion Rear Stubby Bumper, Poison Spyder Tire Carrier, M/C Rock Sliders, Warn Power Plant HD, Viair Constant Duty with Tank, 17" ATX Slabs, Evo Skid Plates, Cheap Chinese Lights, Factor 55 Flat Link, ApolloIntec Switch Pod, 48" Hi-Lift, Dynomax Exhaust

    https://www.instagram.com/4lotested/

  7. #7
    Jeep Owner Jegar's Avatar
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    Quote Originally Posted by Pthorpe84 View Post
    Yep. Dissimilar metals is a concern and could be a contributing factor. The less noble will sacrifice itself to protect the more noble metal. All those NACE classes have finally paid off I guess. lol.

    This is another reason Iím hesitant to use aluminum parts on my Jeep. Yes I know the rate of deterioration will be minor with the two alloys, but my job makes me think way too much into it. After all, our aluminum wheels are seated on steel.


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    So....On a slight deviation from the topic of Anti-Rock, but in regards to combined metal issues and corrosion: Steel bracing plate under an aluminum trailer (to hold steel E-track plates for tie downs) a bad idea? The plates were painted first and the E-tracks are powder-coated, except where cut and/or scratched.


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    Moderator Pthorpe84's Avatar
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    Because they are coated. You have an insulator that will prevent the metals from interacting. You should be good.


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    2015 JKU Hard Rock, 3.5" Game Changer-Rock Sport, 37" Toyo M/T, Overline Fenders, M/C Full Stinger Bumper, GenRight Fusion Rear Stubby Bumper, Poison Spyder Tire Carrier, M/C Rock Sliders, Warn Power Plant HD, Viair Constant Duty with Tank, 17" ATX Slabs, Evo Skid Plates, Cheap Chinese Lights, Factor 55 Flat Link, ApolloIntec Switch Pod, 48" Hi-Lift, Dynomax Exhaust

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  11. #9
    Jeep Owner Jegar's Avatar
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    Quote Originally Posted by Pthorpe84 View Post
    Because they are coated. You have an insulator that will prevent the metals from interacting. You should be good.


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    Phew!!!!


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  12. #10
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    Quote Originally Posted by Jegar View Post
    Phew!!!!


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    I am going to tell you the opposite than PThorpe, but mine comes from experience. Nothing under a trailer stays coated. We are in Michigan and we put E-track in our smaller aluminum trailer and did what you did, put primer and painted metal under. Where wherever the metal touched the aluminum, the aluminum started to poweder away and the metal was rusting pretty bad. In the places the screws went through the e track into the aluminum, we had the same issue. the screws held nothing down anymore.

    The ONLY way that works is if you use stainless hardware and do not let your backing plates touch aluminum. Our new trailer has stailess hardware and aluminum backing plates. Lesson learned pretty quick. 2 years.

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