Parts Needed To Use Old Demco Autoslide On New 2025 Chevy Silverado 2500 Crew Cab 6.5' Bed
Updated 08/20/2025 | Published 08/06/2025
Products Featured in This Question
Question:
I bought a new truck and need help finding the correct underbed mounting kit for my DM6081 Autoslide 18k 5th wheel hitch. I have a new 2025 Chev Silverado 2500 HD 4wd crew cab with 6.5’ bed. Please advise. Thank you, Bob
asked by: Robert H
Expert Reply:
Hello Robert, thanks for reaching out. We should have a solution for you, but the part number # DM6081 is the Demco Autoslide head unit, so this does not tell me exactly what hitch you have. Basically I will just need to know if your hitch attached to a factory puck system or to industry standard 5th wheel rails.
If your new Silverado has the factory puck system, you would just need to replace the side plates on your hitch. For that use part # DM49GV. These will allow your Autoslide hitch to attach to the Chevy puck system.
If your new truck does not have the factory puck system, you will first need to install a rail kit in the bed. For that use parts # 8552037 and # DM6071.
Then if your Demco hitch already has the side plates for industry standard 5th wheel rails, you will be good to go. If you need the rail mount side plates too, those are part # DM6003.
Was your old Demco hitch made for a factory puck system, or for the ISR rails?
(click to enlarge)
Robert H.
8/20/2025
Jesse, I have a few pictures of my Autoslide unit with the side plates if that would be of any help. Let me know.
Product Page this Question was Asked From
Replacement Head for Demco Autoslide 5th Wheel Trailer Hitches
- Accessories and Parts
- 5th Wheel Hitch
- Head
- Head Assembly
- Autoslide
- Demco
more information >
Continue Researching
- Shop: Fifth Wheel Hitch
- Search Results: accessories and parts
- Search Results: fifth wheel hitch
- Shop: Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitch - Chevrolet/GMC
- Shop: Replacement Head and Base Assembly for Demco Autoslide 5th Wheel Trailer Hitches - 18K
- Shop: Demco Premier Series Custom Mounting Brackets for 5th Wheel Above-Bed Base Rails
- Video: An In-Depth Look at the Demco Autoslide 5th Wheel Hitch w/ Slider for Chevy/GMC
- Shop: Universal Above-Bed Base Rails for Demco Premier Series 5th Wheel Trailer Hitches
- Video: Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitch Spec Review
- Shop: Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC - Single Jaw - Underbed - 18,000 lbs
- Video: Installing the Demco Autoslide 5th Wheel Hitch in a 2025 GMC Sierra 2500
- Shop: Demco Autoslide 5th Wheel Hitch w/ Slider for Chevy/GMC - Single Jaw - Above Bed - 18,000 lbs
- Shop: Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC and Dodge Ram - Single Jaw - Above Bed - 18K
- Video: Demco Hijacker 5th Wheel Above-Bed Base Rails Mounting Brackets Installation - 2017 GMC Sierra 2500
- Video: Demco Premier Series 5th Wheel Trailer Hitch Above-Bed Base Rails Installation - 2017 GMC Sierra 250
- Q&A: Gooseneck Pinbox to Replace Curt Helux on 2026 Alliance Paradigm
- Q&A: Recommended Replacement Leaf Springs for Dexter 072-099-01 Leaf Springs
- Q&A: Can 18K Demco Hijacker Be Adapted to Fit Puck System on 2020 Ford F-250
- Q&A: Parts Needed To Install Demco Autoslide 21K Hitch In a 2024 Ford F-350
- Q&A: Compressed and Uncompressed Length for the Roadmaster Replacement Shock Absorber
- Q&A: Lubrication And Maintenance For A Demco Autoslide 5th Wheel Trailer Hitch
- Q&A: Recommended Gooseneck Pin Box to Replace a Lippert 1116
- Article: Double-Eye Trailer Suspension System Review
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Flat Towing Package for 2007-2018 JK Jeep Wrangler and Wrangler Unlimited
- Article: Most Popular Wheel Bearings
Robert H.
8/20/2025
Jesse, Sorry for the slow response. My new 2025 Silverado HD does not have factory puck system. My Demco Autoslide does still have the side plates from my old Ram truck. Can I still use those? I thought all I needed was the bed top rail mounting hardware. Or is there a bed undermount kit available? Thank you, Bob