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Looking For Toolbox That Fits Under Tonneau Cover On 2026 Ram 3500 Dually 8' Bed  

Updated 10/03/2025 | Published 10/02/2025

Question:

Got a 2026 Ram 3500 dually 8ft bed. What tool box will fit under this cover and still shut and fit under the canister. Looking for a black aluminum one.

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Expert Reply:

Hello Al, thanks for reaching out. Our best option for that is the UWS Truck Bed Toolbox # UWS01066. This is a black aluminum toolbox that measures 58" Long x 11" tall x 18-3/4" deep. It will easily fit under your tonneau cover. You will just need to pick an installation location rear of the tonneau cannister that allows the box to open fully.

expert reply by:
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Jesse M
UWS01066
UWS01066
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Al profile picture

Al

10/3/2025

UWS Secure Lock Truck Bed Chest - Under Tonneau Series - 8.85 cu ft - Matte Black Powder Coat Looking for one like this. Will this fit under the canister on the tonneau cover. I see it is notched in the rear.

Jesse M. profile picture
Etrailer Expert

Jesse M.

10/3/2025

@Al So with that one you would likely run into a clearance issue with the cannister. You would only be able to put the toolbox up against the canister, and not directly under it.

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