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Posted

i have the 2020 trailboss, im looking to buy a trifold tonneau cover from craigslist or Facebook marketplace,  are there any other years that will fit the 2020? I found a bunch that fit the 6.5 beds but its the width thats been an issue.  

Posted

Technically just 19 (new body style) and 20. Some guys are running 2014-2018 covers on theirs but not sure which ones or how it looks. They are narrower than our trucks.

Posted

And to make it even more fun, the 2020HD standard box is a little longer than the 19/20 1500 standard box.

 

2019 HD standard is same length as 2018 and earlier 1500 std.

  • 1 month later...
Posted

Got my new '20 RST crew cab  with the 5'5" bed.   I previously had a '15 LTZ, and an '18 Sierra Denali with the same size beds.   I had an Extang trifold tonneau that fit on both.  I was told that that tonneau WOULD NOT fit the '20 RST.   My salesman "threw in" a GM accessories trifold for the $500 worth of accessories he was able to "give" me.  Both of my previous truck were leases, so I kept the Extang cover- just in case.

 

Sure enough- Last Sunday I tried the Extang out, and it fits almost perfectly!    The only spot where there is even a question is at the rear of the bed.   The '20's bed tapers slightly at the rear, but the old tonneau still seals completely.  Needless to say, I like the Extang cover better- lifetime warranty , and will try to sell the GM accessories cover.   Just a heads up for anyone wondering if their old cover will fit the new style. 

 

NOTE-  this is for the trifold soft cover, I cannot speak for the soft roll up, or trifold hard cover.

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