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Will the Thule TracRac Base Rails Fit with the Xsporter # TH54RR and the X4s # BAK56ZR?


Can you tell me if the Bak Revolver x4s, Item # BAK56ZR, will work with the Thule TracRac Base Rails, Item # TH21610 and the Thule Xsporter Shift Rack, Item # TH54RR? 2021 Ford F150 56 Bed


Expert Reply:

I have the parts that work for you! I confirmed with Thule that the TracRac Base rails # TH21610 will not fit your 5-foot 6-inch bed on your 2021 Ford F-150. The correct TracRac Base Rails you need is the # TH21508. Since these base rails install directly into the stake pockets, you leave the bed rails open to install the BAK Revolver X4s Hard Tonneau Cover # BAK56ZR.

As far as the Xsporter Pro Shift # TH54RR, that rack fits with the base rails # TH21508 on your truck.

The only thing to keep in mind when using the Pro Shift with the X4s is that the roll-up tonneau may have some slight rubbing against the bases of the rack. This is because the Pro Shift includes bases that have an inward angle toward the center of the truck. If you are open to considering an alternative rack that will not have any rubbing when opening/closing the cover, the Adarac Pro Series Custom Truck Bed Ladder Rack - Aluminum # A86RR will not interfere the cover in any way due to its straight bases.

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