Retrax Pro MX Tonneau Cover that Fits 2024 GMC Sierra 3500 Long Bed Dually

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Question:

Im having trouble locating a Retrax PRO MX bed cover for a 2024 GMC Sierra 3500 dually with crew cab, 8 bed and dealr fifth wheel prep package. Can you help please?

asked by: Mark L

0

Expert Reply:

Hey Mark, we have the RetraxPRO MX part # RT80485 that is a confirmed fit for your 2024 GMC Sierra 3500 long bed. The fit of this is not based on the OEM puck kit as that would not affect anything related to the cover. Are you wanting to cover a fifth wheel hitch when not towing?

expert reply by: Jameson C

0

Mark L.

11/26/2025

Yes. It is a Curt PowerRide 5th Wheel Trailer Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 30,000 lbs.

Jameson C.

11/26/2025

@MarkL Makes sense! How do you like the Curt PowerRide # C36WR?

Mark L.

11/26/2025

@JamesonC I ordered it through etrailer, as I do all things towing and it will arrive 28 November, but your last reply did not answer my question. Will the Retrax PRO MX close over the hitch as needed. I need to know that that hitch will sit low enough. Thank you.

Jameson C.

11/26/2025

@MarkL Sorry about that! Yes it will close over that hitch. Since it's handle does not stick up a lot higher than the hitch head there won't be any issues. I wish I could upload a picture here as there is a picture I found that shows a similar tonneau easily fitting over that hitch.

See All (5) Replies to Mark L. ∨

Answer 1

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 2

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 3

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 4

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 5

Hey Jerry, GM moved the placement of their puck systems starting with 2020 models so you are correct that the pucks would have the hitch not sit directly over the axle. GM did the math and made sure that this placement wouldn't adversely affect…

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Answer 6

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

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Answer 7

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 8

Hello Femi, Thanks for reaching out! Both the Demco Autoslide #DM39SV and #DM29GV are excellent choices for your 2026 GMC Sierra 3500 with the factory prep package, and both are compatible with your Grand Design Reflection 150 Series. The biggest…

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Answer 9

We have lift kits for trailer that easily add 2 inches to the height of the trailer. For that you'd want the part #RR23QX and you'd be set. I attached a picture that shows how it installs to give you an idea. This would be the easiest…

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Answer 10

Hey Steve, welcome back! To add a set of air bags to your 2024 GMC Sierra 3500 dually, I recommend the Firestone item #F2613. These air bags have a 5,000 lbs capacity that are going to level out your rear end. Seeing as how you only tow a few times…

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Answer 11

Hey Scott. To add a 7-way and 4-way connector to your 2024 GMC Sierra 3500 that can be used at the same time, I recommend the TowSmart ProClass Trailer Connector item #TS49RR. It's going to replace the factory one and mount in the same position…

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Answer 12

The differences between the Firestone Ride Rite #F2613 and the Red Label #F2709 for your 2023 GMC Sierra 3500 Crew Cab Long Bed is the air pressure and max weight capacity. The Ride-Rite #F2613 are rated for 5,000lbs and 100 PSI, where the Red Label…

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Retrax Pro MX Tonneau Cover that Fits 2024 GMC Sierra 3500 Long Bed Dually

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