Towing a 102 Inch Wide 5th Wheel Trailer with a 2016 GMC Sierra 2500 Short Bed
Question:
I have a 1996 Gulf Stream Kingsley 5th wheel with the pin box under the unit. That was fine for an 8 ft. Bed. Now I have a 6.5 ft. Bed on a heavy duty 2500 GMC 2016. What is the replacement you recommend. I have a Venture # INL10 FT 22T152730 existing. Serial # is 176416. From the corner of the nose to the center of the king pin is 51.
asked by: John T
Expert Reply:
To get the clearance you need to tow your 102 inch wide 1996 Gulf Stream Kingsley 5th wheel trailer a replacement pin box will not offer enough extension.
Basically the distance from the back of the truck cab to the center of the king pin when the trailer is coupled has to be at least 4 inches more than half the width of the trailer. That means that you would need a cab to king pin distance of 55 inches.
If you have the factory 5th wheel prep package in your 2016 GMC Sierra 2500 or an aftermarket installation kit already installed in the vehicle measure from the back of the truck cab to the center point between the rails or mounting pucks for a hitch. Take 55 inches and subtract from it the cab to king pin measurement. The difference is the amount of extension you will need.
A Sidewinder moves the trailer pivot point back 22 inches but there isn't a Sidewinder that fits the pin box you have. That means that the hitch will have to be replaced. The hitch that offers the most travel is the 13K Demco HiJacker which has a maximum travel distance of 22-1/2 inches.
There are 2 versions of this hitch: # DM8550040 is designed for industry standard above the bed rails, such as those found in installation kit # RP50066-58, and # DM8550041 which fits an aftermarket under bed system.
If the truck has the factory pre package then you would need to use adapter # DM6194 and then you could use # DM8550040 in the adapter.
Products Referenced in This Question
Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package - 6-1/2' Bed - 21K
- Accessories and Parts
- Fifth Wheel Installation Kit
- Adapters
- Rail Adapter
- Demco
more information >
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 13,000 lbs
- Fifth Wheel Hitch
- Sliding Fifth Wheel
- Above Bed Rails
- 3250 lbs Vertical Load
- 13000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 15-1/4 - 18 Inch Tall
- 22-1/2 Inch Fore/Aft Travel
- Demco
more information >
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Under Bed - 13,000 lbs
- Fifth Wheel Hitch
- Sliding Fifth Wheel
- Aftermarket Below Bed Rails
- 3250 lbs Vertical Load
- 13000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 15-1/2 - 18-1/4 Inch Tall
- 22-1/2 Inch Fore/Aft Travel
- Demco
more information >
Reese Quick-Install Custom Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches
- Fifth Wheel Installation Kit
- Custom
- Above the Bed
- Reese
more information >
Product Page this Question was Asked From
Trailair Air Ride 5th Wheel King Pin - Steelco/Davis, Venture - 21,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 21000 lbs GTW
- Fixed Turret
- Steelco-Davis PB01
- Venture CJ13515
- Venture CJ13517
- Venture Short
- Lippert
more information >
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