3rd Generation Colorado Bed Rail cracking due to cap and even simple bed racks installations.

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May 16, 2026
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It's come to my attention, sadly, of the issue of the 3rd Generation Colorado bed rails cracking due to GM's poor welding design, whether you install a simple cap, one w/a built-in pop-up tent, or even w/a simple bed rack. I don't know about previous generations.

What's going on here? 🙄

I bought my Colorado w/the intent to install a cap w/a pop up tent, like a Tune M1.

If I had known about this issue, I wouldn't have bought my Colorado, but rather a Toyota Tacoma Off-Road.

It's the only truck out there w/this issue I'm told.

Tune has a fix for it I'm told, so I'll get in touch w/them about it, but still, a $52,000 truck?

Anyone else know more about this issue?

Thanks
 
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