How to Convert a 21K Demco Autoslide Hitch to Work w/ a 2024 GMC Sierra 3500 w/ the Puck System
Published 12/10/2023
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Question:
Good day I bought a 21k Demco sliding hitch and mounting plate from you in 2029 for my new GMC 3500 pickup with standard bed and GM fifth wheel and gooseneck prep. Will the base plate I have fit in a new 2024 GMC 3500 with the same bed and fifth wheel and gooseneck prep? Thanks
asked by: William B
Expert Reply:
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.
We've got two options to make the 21k Demco Autoslide item # DM8550035 you purchased fit in your new truck. The easiest way and the one I recommend is to change the side plates using the Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitch item # DM49GV. These simply bolt onto the side of your Autoslider and have legs that mount directly to the puck system with no need for an adapter.
The second option is to use the Demco 5th Wheel Rail Adapter item # DM6333 and have the same set up you've been using for the last few years.
Product Page this Question was Asked From
Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package - 21K
- Accessories and Parts
- 5th Wheel Hitch Rails
- Adapters
- Rail Adapter
- Demco
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