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Thule TracRac SR for 2019 Chevy Silverado Trail Boss  


Will this fit my 2019 Chevy Silverado Trail Boss 5-3/4 ft bed with my Backflip MX4 folding tonneau?


Expert Reply:

The issue we're going to run into is that the BAKflip MX4 # BAK448130, is not a great fit for the Thule TracRac SR # TH43002XT-782 because the wide rails on the TracRac SR overlap with the seals on the MX4. In addition to this, you would need to move the rear rack forward in order to fold the cover up each time and with continuous use the seals on the cover will wear out.

The only confirmed tonneau cover that will work with the Thule TracRac SR is the BAK Revolver X4s # BAK62VR, which is a hard cover that rolls up and is not interfered with by the up-right supports on the Thule TracRac SR. The only ladder rack that we offer that will allow full, unimpeded access to your truck bed with the MX4 is the Adarac Pro Series # A4002965, which is designed to work with most tonneau covers that mount inside the bed rails. The reason for this is that the Adarac Pro Series uprights are straight up and down (90degrees from bed rails) where other ladder racks are pitched inward to sit around 75 degrees from the bed rails. The Adarac Pro Series has a 500-lbs capacity, which is lower than the Thule TracRac SR, but allows the same sliding functionality that many users are looking for.

expert reply by:
Erik B

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