Space Between the Bed and the Bottom of the Canister of the Bedlocker Tonneau on a 2021 Sierra 2500
Published 09/25/2025
Question:
On a 2021 GMC sierra 2500 std bed, what is the distance from the bed up to the bottom of the front housing? Trying to determine if an aux fuel tank will fit on the floor below.
asked by: Mark J
Helpful Expert Reply:
Hey Mark. There's only going to be 9" of space between the bed of your 2021 GMC Sierra 2500 and the bottom of the canister on the Pace Edwards Bedlocker Retractable item # PE78CV. The canister extends 10-1/4" out from the front of your bed towards your tailgate.
How tall is the fuel tank you're looking at installing?
(click to enlarge)
Product Page this Question was Asked From
Pace Edwards Bedlocker Retractable Hard Tonneau Cover - Electric - Aluminum - Matte Black
- Tonneau Cover
- Retractable - Powered
- Opens at Tailgate
- Built-In Lock
- Flush Profile - Inside Bed Rails
- Aluminum
- Matte
- Pace Edwards
more information >
Continue Researching
- Q&A: Will The Buyers Product Storage Box 3371712240 Be Able To Open Properly On My Trailer?
- Q&A: Choosing Between RetraxONE and RetraxPRO XR Hard Tonneau Covers
- Article: Trailer Lighting Requirements
- Q&A: Fifth Wheel Hitch Recommendation 2025 Chevy Silverado Towing Alliance Valor
- Q&A: What Grease Should Be Used on B&W Companion Polyurthane Molded Bushings on the Pivot Arms?
- Q&A: Should I Get Loadlifter 5000 Or 7500 For Towing A 15K Fifth Wheel
- Q&A: Could Pace Edwards Bedlocker Tonneau Cover Fit with Headache Rack
- Q&A: Dimensions Of Gen-Y Shock Absorbing 5th Wheel to Gooseneck Pin Box GY66FR
Mark
9/25/2025
Thanks for the fast response. Unfortunately I need 10 3/4”.