I bought a used 2014 Chevy 3500 HD with a puck system for the 5th wheel hitch.
I have been to the Chevy dealer, Camping world and other trailer hitch places but nobody can help me.
Please let me know if you have any information on this.
Have you checked with eTrailer? 800-298-8924.
B&W 3700 for oem GM puck system, however, supposed to be for 15 MY and up???
B&W Companion OEM hitch is RVK3700 for the 20k lb hitch and RVK3705 for the 25k lb hitch. AFAIK, there's been no change in the GM pucks since they were introduced.
I didn't think they had the puck system for the HD's in that generation.
Take a picture of the brackets on the side of the frame. From that we can tell if it was factory or possibly the puck system used by Reese.
Even if you don't purchase from them, you'll be able to see what fit's your application by entering your year/model/make of truck. Their website is good.