Offset Gooseneck Ball For 2022 GMC 3500HD And Reese Goosebox Replacement
Updated 10/31/2025 | Published 02/19/2025
Products Featured in This Question
Question:
I have a 2022 GMC 3500HD with the 6 3/4 ft bed. Im buying a 2024 Montana 3901rk. Id like to install the Reese goose box and the Gen Y 5inch offset ball assembly. Will this set up allow clearance for a jack knife 90 degree turn? If so what part numbers would you recommend for the goosebox and Gen Y along with the safety chains and installation kit? Thanks for your help.
asked by: Steve B
Expert Reply:
Hey Steve, I can definitely help with this!
First, the Gen-Y Hitch Gooseneck Trailer Hitch # GY55XR is what you will need for your 2022 GMC 3500HD with the OEM puck system. This will give you 5" of offset.
For the goosebox, we want to make sure you get the correct model for your camper. The # RP85FR you mentioned will replace the Lippert 1621, 1716, 0719, Rhino, and Fabex PB 600 series pin boxes. I do not have a way to look up what pin box your camper is currently equipped with, so please confirm yours is one if the sizes I mentioned. If you are unsure, send me the model number and serial number from your pin box and I can find out for you.
As far as turning clearance, there is a formula you can use to determine your clearance.
(A + B) - C = Clearance
A = Distance from the gooseneck ball center to the truck cab
B = Offset used (5" in this case)
C = Width of the nose of the trailer divided by 2
Usually with a 6-3/4' bed and 5" offset, you should be good on clearance, but the only way to know for sure will be to measure.
I hope this helps, and feel free to reach out and reply below. I am happy to continue to assist.
Product Page this Question was Asked From
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - 20,000 lbs
- 5th Wheel Gooseneck Adapter
- Adapts Trailer
- 5th Wheel Trailer to Gooseneck Hitch
- No Extra Clearance
- 20000 lbs
- Replaces Pin Box
- Shock Absorbing
- Fabex 600
- Lippert 0719
- Lippert 1621
- Lippert 1716
- Lippert Rhino
- Reese
more information >
Featured Help Information
Instructions
Continue Researching
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: What is the Difference in the 3rd Generation Reese Goosebox?
- Q&A: How To Determine Which Pin Box I Have and What Replacements Are Available
- Q&A: Is An Offset Ball Needed For The Reese Goosebox In A Short Bed 2014 Ram 3500 Dually
- Q&A: Options for Towing A Fifth Wheel With A 2022 F-350 Short Bed With OEM Puck System
- Q&A: Correct Gen-Y Executive Pin Box for a 2025 Alliance Avenue 32 RL
- Q&A: Comparing Reese Goose Box and Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Adapter
- Q&A: Should I Go With The 16k RP94716 Or 20k RP94720 Reese Goose Box For My Trailer?
- Article: Gooseneck to 5th Wheel Adapters
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Article: Big Truck Big RV
- Article: How Much Solar Power Do I Need For My RV?
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
Jesse M.
10/30/2025
Hey Steve, were you able to measure your setup to see if the Reese Goose Box and Gen-Y offset ball gave you enough clearance for tight turns? Knowing how it worked out could really help others setting up a similar truck and trailer combo.