Will TracRac SR Sliding Ladder Rack Fit 2018 GMC Sierra 1500 with Ultra Flex Tonneau Cover
Updated 07/21/2020 | Published 01/21/2019 >
Question:
I have a 2018 GMC sierra with standard bed. I have a bed cover Ultra Flex by undercover. Will this work with the ladder rack?
asked by: Ronnie B
Expert Reply:
Based on my research it looks like the UnderCover Ultra Flex Tonneau Cover installs completely inside the bed rails of your 2018 GMC Sierra 1500. Since the Thule TracRac SR Sliding Truck Bed Ladder Rack # TH43002XT-781 mounts on top of the bed rails the two systems should work well together. The only potential issue with this ladder rack and hard folding covers like these is that the panels on the cover, specifically the outer seals, might rub up against the rails for the TracRac when folding the tonneau up. This won't prevent it from operating but may over time cause wear on those seals.
This ladder rack is one of the few options available that mount on top of the bed rails so it will still be your best option. I also really like the T-track base that allows you to slide the crossbars along the bed rails to adjust for different sized loads. It has a weight capacity of 1,250 pounds.
I have attached a short video demonstration on this rack along with the written installation instructions that you can check out as well.

Kristin M.
7/17/2020
Will it fit on a 2018 Ford F-150 short box with the Undercover Ultra Flex cover?

Product Page this Question was Asked From
Thule TracRac SR Sliding Truck Bed Ladder Rack - 1,250 lbs
- Ladder Racks
- Truck Bed
- Sliding Rack
- Crossbar Rack
- Not Tonneau Compatible
- Over-Cab Height
- 1200 lbs
- Over the Bed
- No Drilling Required
- Thule
more information >
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Ivan
6/13/2020
Will this fit on a 2016 Chevy 1500 6 1/2 ft bed.i have a ultra flex by under cover