Correct Gen-Y Gooseneck Pin Box for a Brinkley 5th Wheel Trailer

Updated 09/09/2025 | Published 09/05/2025

Products Featured in This Question

Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert Turning Point - 21K - 3.5K TW

(255)

$1860.97

B&W Ball and Safety Chain Kit for Ford, GM, Chevy, and Nissan Titan XD Underbed Gooseneck Hitch

(1350)

$299.00

Safety Chain with 2 Hooks for Gen-Y 5th Wheel to Gooseneck Pin Box - 84" Long - 26,000 lbs

(180)

$100.97

Question:

Buying a Brinkley Z3100 its a early 2024 unit, I dont have a 5th wheel hitch yet, want to swap to a Gen Y goose. Is there only 1 part number? I will be driving to the trailer and swapping hitches myself. want to get the correct one or ill be stuck.

asked by: Matthew T

Expert Reply:

Hey Matt, congrats on the new 5th wheel trailer. Do you know what pin box is on the Brinkley Z3100 you're buying? There's quite a few different bolt patterns and there's no database that shows me what pin box is on a trailer.

The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box item # GY48GR you were looking at will only replace a Turning Point pin box. Now those are typically clearly labeled as being a Turning Point. Rhino-Box is another one that's easily identifiable.

If the trailer you're buying's pin box isn't one of those two, I'll need you to get me a picture of the white sticker attached above where the pin box bolts to the 5th wheel trailer. It'll have information about the date of manufacturer, weight capacity, RPO, LCI, Serial number. If you can email me a picture of that or just put all the information on that sticker where it says Reply to Jerred H, I'll be happy to find you the right goosebox.

expert reply by: Jerred H

Matthew M.

9/7/2025

It is a Rhino Box in the photos from the seller.

Jerred H.

9/9/2025

@MatthewM Thanks for the information! That makes things easy! Since your Brinkley has a Rhino Box on it you'll need the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box item # GY33GR. You'll also need the Safety Chain with 2 Hooks item # GY49GR. Safety chains are not included with the pin box and they are legally required for use with a gooseneck hitch.