Will Rhino-Rack Pioneer Platform Fit Westin EXP Truck Topper on 2019 Chevy Colorado
Updated 12/08/2025 | Published 12/02/2025
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Question:
Hi, I have a question regarding the Westin EXP aluminum truck topper for my 2019 Chevy Colorado ZR2 4 door. I’d like to put a flat roof rack, ideally from Rhino Rack that would seamlessly cover the entire topper and roof of the truck. Do the gutter mount rails line up? Is this possible, and can you give me some options to see this installation through? Thanks! -Ash
asked by: Ash E
Expert Reply:
Hey Ash! It is possible to add a Rhino-Rack Pioneer Platform to the Westin EXP Truck Topper # W76PT. The topper is 75.6" long and 63.3" wide. The distance between the mounting rails is 38.78" and the rails are 54" long. The Rhino-Rack Quick Mount Legs # RRRLT600 will fit the rails and are compatible with the Pioneer Platform. These can slide along the crossmember to match the width of the rails on the topper for installation.
For the platform I recommend using the # RR59AP which is 75" Long x 49" Wide. This is the closest match to the topper and will give you the most coverage without massive overhang in the front/back.
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Product Page this Question was Asked From
Westin EXP Truck Topper - Aluminum - Black
- Truck Topper
- Hard Camper Shell
- Flip-Up Windows
- Fixed Side Panels
- Westin
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on Truck Topper
Ash E.
12/5/2025
Thanks! What would be ideal to match that rack with a similar spec rack for the roof of the Colorado? Trying to make one long rack platform, to allow for maximum flexibility and hauling.