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Old 05-10-2018, 01:01 PM
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RK Aluminum Corrosion...

I'm running a Rock Krawler Flex 3.5" kit with adjustable rear track bar and high steer drag link added on a 2018 JKU.

After only being installed for 6 months, the originally shiny (un-coated) aluminum components of my RK kit are all pretty corroded and pitted. Too far gone for something mild like Mother's Aluminum polish to even make a dent.

I'm not looking for a mirror finish, but do you have a suggested way to first restore the aluminum components, and then to keep them from continuing to corrode further?

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Old 05-14-2018, 09:01 AM
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Rock Krawler doesn't answer up here anymore...?

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2018 JKU WILLYS - Automatic, Prem Soft Top, Alpine Speakrs, Alpine i209-WRA Restyle, Smittybilt Gen2 XRC Bumpers, Smittybilt X20 10k Synthetic winch, Barricade Rock Sliders, Rock Krawler 3.5" Flex System Lift + High Steer Drag Link + Rear Track bar, Nitto Trail Grappler 35's on Rockstar3 9x17s, TeraFlex HD Tire Carrier, ARB Diff Covers, Tom Woods 1350 Drive Shafts, Spicer D44 Front Axle w eLocker, Rear eLocker, Regeared to 4.88, NP241OR T-Case.
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Old 05-17-2018, 07:53 AM
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Helloooooooooo... (Just listening to the echo in here...)
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2018 JKU WILLYS - Automatic, Prem Soft Top, Alpine Speakrs, Alpine i209-WRA Restyle, Smittybilt Gen2 XRC Bumpers, Smittybilt X20 10k Synthetic winch, Barricade Rock Sliders, Rock Krawler 3.5" Flex System Lift + High Steer Drag Link + Rear Track bar, Nitto Trail Grappler 35's on Rockstar3 9x17s, TeraFlex HD Tire Carrier, ARB Diff Covers, Tom Woods 1350 Drive Shafts, Spicer D44 Front Axle w eLocker, Rear eLocker, Regeared to 4.88, NP241OR T-Case.
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Old 05-17-2018, 08:02 AM   #4
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I live 30 minutes from RK HQ in NY. Great performance, but handles anything in the winter horribly. Their powder coating gets eaten up badly by the salt brine in NY where their HQ is also. Don't expect a satisfying answer from them. Ask me how I know.
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Old 05-17-2018, 08:11 AM   #5
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Keep them painted and/or fluid filmed. Not sure on the restoration but my RK arms and coilovers look great and I paint them once a year. What you are describing from unfinished metals especially in MD where I am sure they use a lot of salt is completely expected.
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Old 05-18-2018, 06:38 AM
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Quote:
Originally Posted by RubiTruxBen View Post
Keep them painted and/or fluid filmed. Not sure on the restoration but my RK arms and coilovers look great and I paint them once a year. What you are describing from unfinished metals especially in MD where I am sure they use a lot of salt is completely expected.
I'm in Maryland too, so same conditions here. I'm not having any issues with their powdercoat, just the aluminum knuckles.

Been looking on YouTube and I've seen everything from fine grit sandpaper to Arm & Hammer Whitening Toothpaste recommended to clean up mildly pitted aluminum. Then finishing up with a polish like Mothers.

I'm considering getting it all cleaned up and then maybe clear coating it. But I don't know how well that will stick to Aluminum.
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Old 05-18-2018, 08:06 AM   #7
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Quote:
Originally Posted by NaptownLarry View Post
I'm in Maryland too, so same conditions here. I'm not having any issues with their powdercoat, just the aluminum knuckles.

Been looking on YouTube and I've seen everything from fine grit sandpaper to Arm & Hammer Whitening Toothpaste recommended to clean up mildly pitted aluminum. Then finishing up with a polish like Mothers.

I'm considering getting it all cleaned up and then maybe clear coating it. But I don't know how well that will stick to Aluminum.
Fluid film keeps my bare aluminum parts pretty new looking.
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Old 05-22-2019, 02:20 PM   #8
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I live in Southern California and my RK components look like crap after only a year under the Jeep.







I pulled them yesterday and hit them with Krud Kutter and steel wool, then some denatured alcohol and then two coats of Rustoleum 2X

We'll see if that holds up better.

I also see evidence of blistering under the powdercoat of the LCAs at the adjustment end. Not indicative of a high quality finish...
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Old 06-01-2019, 10:19 AM   #9
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After some more crawling around under the Jeep I notice pretty much every one of the RK components is corroding/blistering and powder coat peeling off. This kit was installed in January 2018 (so about 18 months ago) and has been driven maybe 12,000 miles since then in So Cal.

If Id paid for and installed this lift Id be pretty pissed off, but it was on the Jeep when I bought it so Ill live with it until i save the ducats for an AEV or Metalcloak lift.


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