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Video: Chevy Colorado ZR2 Fans Concerned About "Rock Sliders"

zr2 rails rocker

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#1 Gorehamj


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Posted 03 May 2017 - 04:08 PM

ZR2 rocker protection highlight.jpg

John Goreham
Contributing Writer, GM-Trucks.com

Fans and customers holding order sheets for new Chevy Colorado ZR2 pickups are starting to express concerns about the standard "Off-road rocker protection" to use Chevy's exact description, that Chevy is apparently having its dealers install.  We did a little digging to see what is know about that specific component at this time.


Our first clue was in a 2016 article in Outside Online written by Wes Siler. Siler looked at the rocker protection and wrote, "Combine that with long wheelbase, and we’re just not looking at the angles necessary for a true rock crawler here. Hit some boulders and those standard rock rails and aluminum skid plates are going to take a beating."

zr2 leaving factory no rails.jpg

William Francis, a member of the Facebook Colorado ZR2 club (that GM-Trucks.com owner Zane Merva started) looked at an image of the trucks being delivered out of the factory and posted the comment, "Odd, no rock rails? dealer installed maybe?" We enlarged and enhanced the Chevy media image a bit and indeed as you can see above, there is no rocker protection on the trucks leaving the factory. 


Then there is this video we found of a fan checking out the ZR2 in person. The speculation is the dealer didn't mount them properly:


What say you GM-Trucks.com faithful? No big deal, or a bit of a disappointment?

#2 15HDriver


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Posted 03 May 2017 - 04:17 PM

We don't have one yet (I sure hope we do though) but those guards are installed at the dealer, just like on Z06 and Grand Sport Corvette's ground effects/aero parts.  As for the video, possibly not tightened all the way?  Even the GM running boards don't move when installed.  It appears to be an auto show truck? as I see a carpet flooring underneath it. 



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- 2016 Chevrolet Colorado.  Midnight Edition, Crew Cab Short Box, 4x4, 2.8 Duramax, Black.

#3 BamCam



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Posted 04 May 2017 - 07:36 AM

I believe it has been stated in the comments of that video that the rock sliders are indeed mounted incorrectly.  If you look closely there is way too much room between the rocker panel and the bar.   All the LA test vehicles show a much tighter fit and in fact they are so close to the body some of the LA trucks actually have crushed rockers from significant impacts on the sliders.  As to why no sliders on trucks in transit, these, along with the spare tire carrier, are a LPO option and will be installed at the dealer.  I just hope my dealer gets it right.  My spare tire carrier is not going to be mounted so that I can design a better method to quickly remove/install for the times I need full bed capabilities.

#4 barry G

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Posted 10 May 2017 - 02:27 PM

they look sandwiched in the rubber mounts.

of course they'll move.


maybe they have to.

oe rubber is a bit too squishy as well.




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