What are Dimensions of Puck Kit in 2018 Chevy Silverado 3500

Updated 03/31/2025 | Published 03/27/2025

Question:

I just purchased a 2018 Chevy 3500 it looks like it has a puck system in it but no Center ball and the measurements are 22 inches from front to back and 40 inches from left to right what hitch was previously in this truck can you answer this by any chance?

asked by: Tony D

Expert Reply:

Hey Tony, the GM rail kit that your 2018 Chevy Silverado 3500 could have had would have 22 inches from front to back and 27 inches from left to right like what you can see in the attached picture. Is there anyway you could email me a picture of the pucks? You might get under the bed of the truck and see if you can see a brand on the brackets.

expert reply by: Jameson C

2016-2019 GM Rail Kit
(click to enlarge)

Tony D.

3/28/2025

Here are some pictures of the cups that are in the truck box and the bracket tree on the frame Thanks Tony The photos will be coming in another email to you

Jameson C.

3/31/2025

@TonyD I just got them thank you for that. That is unlike any system we offer but I am going to check a few places to see if anyone can ID it. Based on how it attaches to your frame I would say it's for sure not OEM although from above the bed it gives that impression almost.