5th Wheel Rail Adapter for 2020 GMC Sierra

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Question:

Good afternoon. I just purchased a 2020 GMC 2500 with the 5th wheel prep puck system and took my Reese 5th wheel hitch Part# 30047 16,000lbs out of my old truck. Will the DM6333 adapter fit into my truck and will my old hitch fit to the adapter?

asked by: Daniel S

1

Helpful Expert Reply:

Yes, the Demco 5th Wheel Rail Adapter # DM6333 will fit your 2020 GMC Sierra 2500 6-3/4' bed with OEM prep package. The adapter does have industry standard rails so your Reese 5th Wheel Trailer Hitch # RP30047 will fit to the adapter.

expert reply by: Scott S

1

Reese 16,000 pound 5th wheel hitch
(click to enlarge)

Answer 1

The best 5th wheel hitch for your 2022 GMC Sierra 2500 with the short/standard bed will depend on if you have the factory pucks in the bed or not. If you don't, the Reese M5 5th Wheel Trailer Hitch - Single Jaw - 20,000 lbs #RP30928 and Rail Kit…

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Answer 2

The Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package, part #DM6333 has a shipping weight of approximately 106 lbs.

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Answer 3

I did contact Demco directly and they confirmed that is normal for the rail assembly to be above the bed using the Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package #DM6333. The way the manufacturers designed their puck…

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Answer 4

Choosing the right height setting for your 5th wheel hitch is a combination of a few different variables. First of all you want your towing setup to be as level as possible. With your Montana High Country 340BH level you will want to measure from the…

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Answer 5

Welcome back! I took a look at you order history and the Demco 5th Wheel Rail Adapter item #DM6194 you bought back in 2019 does not fit the puck system in your new 2024 GMC Sierra 3500. GM changed the puck pattern starting in the 2020 model year.…

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Answer 6

Hey Fred, with the Demco adapter plate part #DM6333 it's not necessary for there to be resistance in the levers as you turn them to secure it to your truck's puck kit. As long as they turn all the way and can be locked in that position…

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Answer 7

Thank you for the photo! The Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package #DM6333 is about 2-1/4" tall. I reached out to my contact at Demco who said that since this adapter sits on top of the pucks that height…

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Answer 8

According to the Demco install instructions I attached for the #DM6333 all of the hardware that holds the pucks in position should be torqued to 35 ft lbs.

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Answer 9

The Demco rail adapter kit that you need for your 2020 GMC Sierra 3500 HD is part #DM6333 which is different than the part #DM6194 which was referenced for the 2019 model year. The adapter #DM6333 has a 21K weight capacity and it is compatible with…

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Answer 10

With a few exceptions, you will indeed need a sliding hitch for your short bed Silverado. Here are the exceptions: • You won't need a slider if your 5th wheel is equipped with a rotating pin box like the Reese Sidewinder/Revolution or the Lippert…

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Answer 11

We have a general calculation where you measure from kingpin in the pin box to the outer most point on the nose of your trailer, then measure from the center of the lock jaws on your fifth wheel hitch to the closest point of your truck cab and…

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Answer 12

Yes, the Demco fifth wheel rail kit adapter part #DM6333 that you referenced does fit your 2023 Chevy Silverado 2500HD with the prep package and is also perfectly compatible with your Husky fifth wheel hitch so this would be exactly what you would…

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5th Wheel Rail Adapter for 2020 GMC Sierra

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