Does 2018 Chevy Silverado 2500HD and 3500HD Have Same Underbed Puck System Spacing
Updated 01/15/2026 | Published 01/12/2026
Question:
Hello I had a 2108 2500HD silverado with the puck system for my 5th wheel hitch. I bought a 2018 3500HD SIlverado and it doesnt have the puck system. DO you sell the underbed portion of the puck system.
asked by: keith w
Expert Reply:
Hey Keith, did you for sure buy a 2018 Chevy to replace your 2018 2500? There was a puck design change but it happened later so the two trucks should have the same OEM puck kit which would then make me think the new truck actually has an aftermarket underbed rail kit like a Reese which looks very similar but is spaced differently. If it's a Reese Elite rail kit the pucks would be spaced 30 inches left to right and 13 inches front to back. Let me know what the spacing is on your pucks and we can go from there.
Product Page this Question was Asked From
Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches
- 5th Wheel Hitch Rails
- Custom
- Below the Bed
- B and W
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: 2025 GMC Sierra 2500 5th Wheel Hitch Recommendation for OEM Puck System and 6-1/2' Bed
- Q&A: Replacement Harness for a Lippert Leveling Control Brain for 4-Point Leveling System
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Q&A: Gooseneck Hitch Compatible with 2019 Nissan Titan XD
- Q&A: Is There a 5th Wheel Hitch & Underbed Rails For 2023 Ford F-350 Long Bed
- Q&A: Fifth Wheel Hitch Recommendation for 2022 Ram 5500 with Flat Bed
- Q&A: Overall Dimensions of B&W Companion 5th Wheel Trailer Hitch with Slider # BWRVK3400-5W
- Q&A: Can Removing Heat Shield Under Truck During Gooseneck Hitch Installation Harm the Truck
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Article: Fifth Wheel Trailer Hitch Information and Installation Tips
- Article: Trailer Wiring Diagrams
- Article: Ram Trailer Tow Prep Package
- Article: Gooseneck to 5th Wheel Adapters
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
Robert
1/15/2026
I installed a 5th wheel rail system on my 2020 F-150 installation was fairly easy except I had to modify brake lines. Then I bought a 2023 F-250 & installed a under bed goose neck system installation turned out well. I mounted a 5th wheel in my bed. I used BW equipment for everything. Drilling & mounting I fallowed the instructions. A person needs some tools & knowledge. Robert E.