Can a 5th Wheel Trailer Hitch be Installed on a 2006 GMC Sierra with an Underbed Gooseneck Hitch
Question:
I have an 06 gmc 3500 dually with a unagoose ball hitch. Will the unagoose need to be rmoved to mount the Q-20 or are the brackets to mount it to the truck frame adjustable to make up the thickness of the unagoose brackets?
asked by: Andy
Expert Reply:
It is highly unlikely that you will be able to install a 5th wheel trailer hitch in your 2006 GMC Sierra as long as the gooseneck hitch is installed. The problem is that a 5th wheel hitch installation kit will require the same or some of the same mounting locations as the gooseneck hitch so they would interfere with each other.
What you can do is use an adapter to fit on the 5th wheel trailer to use with the gooseneck hitch. There are a couple of different options. If you have a Lippert 0719, 1621, 1621HD on your trailer, you can use the Reese Goose Box, # RP85FR. Or, if you have a Lippert 0115, 1116, or 1716 pin box, # RP94716-61301.
The Goose Box will replace the king pin on the pin box with a gooseneck coupler. It is also air cushioned for a smooth ride. I have included a link to a video review for you.
There is also a more temporary solution. You can use an adapter that fits around the king pin on the trailer and bolts to the bottom of the pin box. Take a look at the Ranch Hitch, # AM3100. This coupler is height adjustable from 11-3/4 inches to 14-2/4 inches depending on the height you need.
To determine what height you need, park truck and trailer on level ground. Measure from the top of the ball in the truck bed to the bottom of the pin plate where the king pin is attached. This measurement is the height you will need. I also recommend adding the safety cables, # AM3109, if you go with the Ranch Hitch.
Products Referenced in This Question
Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter
- Gooseneck and Fifth Wheel Adapters
- Adapts Trailer
- Fifth Wheel Trailer to Gooseneck Hitch
- No Offset
- 24000 lbs GTW
- Bolts Over King Pin
- Adjustable Height
- King Pin Adapters
- Andersen
more information >
Safety Chains for Ranch Hitch 5th-Wheel-to-Gooseneck Coupler Adapter
- Accessories and Parts
- Gooseneck and Fifth Wheel Adapters
- Safety Chain
- Andersen
more information >
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - 20,000 lbs
- Gooseneck and Fifth Wheel Adapters
- Adapts Trailer
- Fifth Wheel Trailer to Gooseneck Hitch
- 20000 lbs GTW
- Replaces King Pin
- King Pin Adapters
- Fabex 600
- Lippert 0719
- Lippert 1621
- Lippert 1716
- Lippert Rhino
- Reese
more information >
Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1716 - 16,000 lbs
- Gooseneck and Fifth Wheel Adapters
- Adapts Trailer
- Fifth Wheel Trailer to Gooseneck Hitch
- Replaces King Pin
- King Pin Adapters
- Lippert 0115
- Lippert 1116
- Lippert 1716
- Reese
more information >
Product Page this Question was Asked From
Curt Q20 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs
- Fifth Wheel Hitch
- Fixed Fifth Wheel
- Above Bed Rails
- 5000 lbs Vertical Load
- 20000 lbs GTW
- Cushioned 360-Degree
- Standard - Double Jaw
- 13 - 17 Inch Tall
- CURT
more information >
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