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  1. Gooseneck and Fifth Wheel Adapters
  2. Gen-Y Hitch
  3. Fifth Wheel Trailer to Gooseneck Hitch
  4. Replaces King Pin
  5. King Pin Adapters
  6. 21000 lbs GTW
Gen-Y Hitch 5th Wheel to Gooseneck Pin Box - Auto Latch - Lippert 1621/1621 HD - 21K - 3.5K TW

Gen-Y Hitch 5th Wheel to Gooseneck Pin Box - Auto Latch - Lippert 1621/1621 HD - 21K - 3.5K TW

Item # GY58GR
Retail:$2,169.38
Our Price: $1,535.99
You Save: $633.39
Gooseneck and Fifth Wheel Adapters
Shipping Weight: 55 lbs
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This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. SlapLatch coupler allows for easy and secure hookup. 3.5K pi n weight. 1-800-940-8924 to order Gen-Y Hitch gooseneck and fifth wheel adapters part number GY58GR or order online at etrailer.com. Free expert support on all Gen-Y Hitch products. Great prices and Fastest Shipping for Gen-Y Hitch 5th Wheel to Gooseneck Pin Box - Auto Latch - Lippert 1621/1621 HD - 21K - 3.5K TW. Gooseneck and Fifth Wheel Adapters reviews from real customers.
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  • Reviews (233)
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Gen-Y Hitch Gooseneck and Fifth Wheel Adapters - GY58GR

  • Fifth Wheel Trailer to Gooseneck Hitch
  • Replaces King Pin
  • Gen-Y Hitch
  • King Pin Adapters
  • 21000 lbs GTW
  • Adapts Trailer

This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. SlapLatch coupler allows for easy and secure hookup. 3.5K pi n weight.


Features:

  • 5th-Wheel-to-gooseneck adapter box lets you tow your 5th-wheel trailer with your gooseneck hitch
    • 5th-Wheel pin box replaces the factory pin box on your trailer
    • Coupler attaches to your truck's gooseneck hitch ball
  • Shock-absorbing design ensures a smooth, steady ride
    • Technology functions like a torsion axle to limit transfer of road shock from trailer to truck and vice versa
      • Reduces chucking and rough fore-and-aft motion
      • Limits bounce and jarring up-and-down motion
    • No airbags to maintain and fewer moving parts to repair or replace than with other shock-absorbing solutions
  • Self-latching coupler automatically engages when hitch ball is in socket
    • SnapLatch pull rod allows you to easily uncouple from outside of your truck bed
  • Cross-shaped holes provide attachment points for safety chains
  • Heavy-duty steel construction
  • Powder coat finish resists wear and corrosion
  • Simple, bolt-on installation
    • Mounts with existing bolts
  • Made in the USA


Specs:

  • Designed to replace Lippert 1621 and 1621 HD 5th-wheel pin boxes
  • Towing capacity: 21,000 lbs
  • Pin weight capacity range: 1,500 lbs - 3,500 lbs
  • Ball size: 2-5/16"
  • 5-Year limited warranty


Notes:

  • In order for the pin box's shock absorption to work correctly, make sure your pin weight is within the pin weight range.
  • To calculate correct towing weight for Gen-Y hitches, use this formula: GVWR x 0.22 = TW.
  • Because the Gen-Y Hitch Executive is shorter than the Lippert 1621 or 1621 HD pin box, the clearance between your trailer and tow vehicle during turns might be reduced.

Calculated Tongue Weight Executive Tongue Weight Capacity Required
1,600-2,599 lbs 3,500 lbs
2,600-3,599 lbs 4,500 lbs
3,600-4,599 lbs 5,500 lbs
4,600-5,599 lbs 6,500 lbs
5,600-6,599 lbs 7,500 lbs
6,600-7,599 lbs 8,500 lbs
7,600-8,599 lbs 9,500 lbs

Fifth Wheel to Gooseneck Adapter

Say your truck has a gooseneck hitch for towing your horse trailer, but you want to go camping with your new fifth wheel. You could outfit your truck with a new fifth-wheel hitch that attaches to your existing gooseneck hitch, but that means having to move a heavy, bulky hitch into and out of your truck bed all the time.


You could also purchase an adapter that bolts onto your trailer's existing pin box. But adding a new component to your setup can keep your pin box from working how it was designed. King pin adapters can create a stiff ride and can even strain your fifth wheel's frame by adding too much height at the connection point.


A better option is to use this gooseneck-compatible pin box to easily tow your fifth-wheel trailer with your truck's gooseneck hitch. The box replaces your trailer's existing pin box, which means it's designed to act as a part of your trailer instead of simply bolting over your king pin like an adapter does.


Built-In Shock Absorption for a Smooth Ride

Executive torsion with cable

If you've ever towed a fifth-wheel trailer before, you're no stranger to road shock. Driving over uneven terrain can result in a rigid, bumpy ride. And uncomfortable fore-and-aft chucking can occur when you're starting and stopping. When all of the motions combine, the road shock can even potentially damage your truck or trailer.


This Gen-Y Hitch torsion pin box is designed to absorb road shock at the connection point to create a safe, smooth ride. This is thanks to the internal construction of the box, which is similar to that of a torsion axle.


Pivot points are built into the Gen-Y pin box adapter. This allows for movement between the box, which attaches to your trailer, and the coupler tube, which connects to the gooseneck hitch ball in your truck bed. When your trailer bounces or jerks, the coupler tube will move accordingly.


torsion diagram

Built into the Gen-Y pin box are tubes with inner bars that are surrounded by rubber cords. As the coupler end moves, these inner bars twist inside of the tubes, attempting to follow the coupler's motion. But the rubber cords prevent the bars from twisting too far. And as each bar turns, these cords compress to absorb the rough shock. This means that any shock experienced by your truck can be absorbed before it reaches your trailer, and the shock experienced by your trailer won't get transferred to your truck.


Easy to Couple and Uncouple

auto latch and cable

The Gen-Y pin box adapter makes hooking up your trailer easy thanks to its automatic latch. When your hitch ball moves into the coupler tube, the latch instantly engages. No need to manually close the socket once the coupler is on the ball.


Disconnecting is fast and easy too. This normally requires that you crawl into your truck bed to access and release the latch. But the Gen-Y adapter box can be disconnected from outside of your truck bed. The included SnapLatch pull rod allows you to easy reach in and simply pull the latch to release the ball from the socket. No need to climb into your truck bed.



GH-8045AL GenY Hitch Executive Fifth-Wheel King Pin to Gooseneck Converter with Auto Latch Coupler - LCI 1621/1621 HD - 21,000 lbs





Customer Satisfaction Score:


Customer Reviews

Gen-Y Hitch 5th Wheel to Gooseneck Pin Box - Auto Latch - Lippert 1621/1621 HD - 21K - 3.5K TW - GY58GR

Average Customer Rating:  4.6 out of 5 stars   (233 Customer Reviews)

This shock-absorbing pin box works with your gooseneck hitch to give a smooth ride while you tow your fifth-wheel trailer. The all-in-1 box has no air bags to refill or small parts to replace. SlapLatch coupler allows for easy and secure hookup. 3.5K pi n weight.

by:

This hitch reduced chucking very well, I have a 2004 3500 Dodge Ram 4x4 Conestoga riding truck with very stiff suspension, the torsion action of the hitch definitely helps when crossing bridges and pot holes. The 5th wheel is an older Keystone Copper Canyon that is in great shape. I Have 12K miles with the new hitch.



by:

I love this hitch I put it on my 35’ Astoria fifth wheel it pulls great and the shock absorbers help with a smooth ride.we took a ten day trip from Ga to Maine last September and had no problems with this hitch. I guess the only negative is that it’s not as easy as a regular fifth wheel hitch to hook up by yourself but after a few times you can line it up ok. The best thing is that no big hitch taking up space in my truck bed just a ball



by:

Order arrived on time. Packaging looked almost perfect with one corner of the box slightly damaged. Two of us installed the hitch without too much of a problem. It is heavy. Used some WD40 on the inside of the mount. Balance it on the tailgate of the truck. One strong man plus an old guy was able to get it installed. I will update this once we have a couple thousand miles on it.



by:

All I can say is THANK YOU Tiffani S.! At first there was a mix-up and some issues with the order and re-applying a rebate that had expired, but finding Tiffani fixed everything. She was able to make things happen the way they should've from the beginning, and she got me all squared away. I have not installed the hitch yet, but things look like they should fit and are high quality.



by:

This pull so much nocer than a 5th wheel hitch.



by:

Because of my bad back I replaced my B&W Companion hitch & Lippert Rota Flex hitch pin which I loved using. There is a learning curve with hitching a gooseneck trailer but with some reflective tape on the center line above the coupler on the gooseneck and a telescoping yellow ball hitching aid with a magnetic base on the truck bed just in front of the ball. This hitch setup is softer and smoother towing than my old setup and I have about 5k miles of use.



by:

Just wanted to give you a heads up, hitch just arrived as promised. Packing could have been a bit more effective as it is apparent that its been dropped unfortunately it broke the finish in a couple places. I will address it and im not asking for anything as i know your not the shipper. Thanks



by:

Space saver, back saver, pulls great. The thing saves so much space in your bed, gives so much room while pulling. It saves your back because no more putting the giant heavy fifth wheel hitch in and out of the bed. It pulls great too, pulling my 42' would buy it again for any trailer. Much more solid that the adapters sold.



by:

The hitch itself works great! Easy to hook and unhook. The only downside to it, as with all gooseneck hitches, is getting into the bed to hook and unhook chains. Adding the hitch and airbags on my truck has defiantly smoothed the ride on the whoopy woops on the road.



by:

I pulled my redwood with an Andersen ball hitch and thought it was great. I just purchased a new Columbus 5er and installed a Gen Y. The Gen Y is unbelievably smoother, even considering my redwood had an air ride hitch. Installation was a snap with a little assist for lifting. The ride is solid and remarkably smooth. I should have bought the Gen Y years ago.



by:

Got here 2 days late, but that's OK. I wasn't ready to install it yet. Probably the kids at UPS couldn't lift it! HAHA. 135lbs. Looks good out of the box. My 5th wheel hitch won't fit the new truck prep so I decided to go this route. Now I have a Reese hitch and a Moryde pin box for sale. No pictures yet.



by:

Took less than 20 minutes to remove existing king pin box and install the gen y was pulling down the road in half hr part works as it should the only thing I would change is making a lock open on the cable pull cause yo need to stand between box and camper when hooking up



by:

This works absolutely perfect in a Ram 3500 with 6 1/2 ft bed, and the Gen Y gooseball hitch.
I think if more people knew of this combination, the fifth wheel style hitch, Anderson hitch and others would become obsolete.
Get to your destination, disconnect, pull out the ball, and the bed of your truck is free!



by:

Works great and I have my bed space back and not tied up with bulky fithwheel plates and rails. Trailer pulls great a lot quieter and reduced chucking.



by:

Very fast shipping and very solid built !!



by:

Quick, easy install. And this thing took the fifth wheel amazingly. My first trip was from Tulsa to Memphis. Most of the ride was 70 cruise control and there were quite a few times I saw the fifth wheel bouncing around in the back, but hardly felt it in the truck. I have a 2019 F350 DRW. The shipping was quick, I bought on a Sunday and had by Wednesday. The install was fairly easy with two people. Just don't forget to retorque the pin box bolts after a few hundred miles. No regrets purchasing this thing.



by:

UPS would not deliver my coupler in a timely manner because they said one driver could not pick it up. I went 30 miles to the UPS distribution center and put it in the back of my truck. The coupler looks to be a nice piece... the shipping was sub standard.



by:

Fit well and is a simple solution to towing with my lifted truck



by:

Haven't got to use the hitch yet but l am sure it will work fine.. Adam Y and the folks at etrailer are top notch. The only place to shop for truck, trailer and camper accessories.



by:

Super easy install, can't wait to test how the new hitch pulls this weekend.



by:

I just got it I haven’t used it yet



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Show More Reviews

See what our Experts say about this Gen-Y Hitch Gooseneck and Fifth Wheel Adapters

  • Recommended Gooseneck Pin Box for a 2024 Keystone Cougar 5th Wheel Trailer
    Thanks for the pictures and information! I just heard back from my contact at Lippert and your 2024 Keystone Cougar has a 1621 pinbox. You will need the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box item # GY58GR you were looking at. You will also need the Safety Chain with 2 Hooks for Gen-Y 5th Wheel to Gooseneck Pin Box item # GY49GR. Safety chains are required by law when towing with a gooseneck hitch and none of the 5th wheel to gooseneck pin boxes include them.
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  • Recommended 5th Wheel to Gooseneck Adapter for a 1621 Pin Box
    Thanks for the picture! That is exactly what I need to confirm what pin box your Forest River Shasta Phoenix 28RB has. I just spoke with my rep at Lippert and you have a 1621 pin box with an 18,000 lbs capacity. You will want the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box item # GY58GR you were looking at. You will also need the Safety Chain with 2 Hooks item # GY49GR. These are designed specifically to work with Gen-Y pin boxes. They are legally required and do not come with the pin box. Please...
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  • 5th Wheel to Gooseneck For 2022 Forest River Sabre Cobalt 5th Wheel With Lippert 1621 Pin Box
    Thanks so much for that info, and yes, because your 2022 Forest River Sabre Cobalt 36BHQ has a Lippert 1621 pin box, the Gen-Y Hitch 5th Wheel to Gooseneck is a fit. The correct part number is the following: - Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR Along with the pin box, the only other thing you need are safety chains, part # GY49GR.
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  • Gooseneck Adapter to Replace Lippert Rota-Flex 1621 Pin Box
    To replace your 160468 - which is a Rota-Flex pin box for a Lippert 1621 - you will need to switch to a gooseneck pin box. The correct option to replace your Lippert 1621 is the following from Gen-Y: - Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR The # GY58GR has a 21,000 lb towing capacity and is for pin weights between 1,500 lbs and 3,500 lbs. You will also need the Safety Chain with 2 Hooks for Gen-Y 5th Wheel to Gooseneck Pin Box - 84" Long - 26,000 lbs # GY49GR.
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  • Gen-Y Hitch 5th Wheel to Gooseneck Pin Box For a 2020 Grand Design Solitude 310GK
    For your 2020 Grand Design Solitude 310GK you will need the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR. This will bolt to the 1621 pin box bolt pattern you have on your Solitude. You will need the Safety Chain # GY49GR as all ball trailer connections are required to have safety chains.
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  • 5th Wheel to Gooseneck Adapter For 2021 Keystone Cougar 29RKS Half-Ton 5th Wheel Trailer
    Your 2021 Keystone Cougar 29RKS Half-Ton 5th wheel trailer has a Lippert 1621 pin box, so the correct adapter is the following: - Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR I also wanted to add that if you don't have safety chains, you'll need part # GY49GR.
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  • Dimensions For Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR
    Here is an image with the dimensions for the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR. Do remember you will need the Safety Chain # GY49GR by switching to a hitch ball type connection.
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    Image 1 for
  • Gen-Y Hitch 5th Wheel to Gooseneck Pin Box For a 2005 Keystone Raptor 3512 5TH Wheel Toy Hauler
    To confirm that the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR is the correct fit for your 2005 Keystone Raptor 3512 5th wheel toy hauler you will need to confirm the pin box on your Raptor. There are 3 ways to confirm the correct pin box. The first is by looking at the tag on your pin box, this will help you confirm that you have a 1621. The second is by finding the Lippert frame tag and I can confirm the pin box bolt pattern through Lippert. Finally you can measure the mounting...
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  • Determining The Correct Gooseneck Pin Box For A 2018 Forest River Signature Ultra Lite RLF8299BS
    Yes, we would just need to know the bolt pattern of your 5th wheel's pin box to determine the correct replacement gooseneck pin box. For example, if you had a 1621 bolt pattern (most common) then you would need the Gen-Y Hitch Shock Absorbing Gooseneck 5th Wheel Pin Box # GY58GR. Your pin box should have a label some where on it with a serial number and an RPO number that we can use to determine the bolt pattern. If your tag has been painted over or worn off then you can follow the steps...
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  • Will The Gen-Y Hitch 5TH Wheel Gooseneck Pin Box Fit a 1997 Jayco Eagle Camper?
    To determine if the Gen-Y Hitch 5th Wheel to Gooseneck Pin Box # GY58GR will fit your 1997 Jayco Eagle 24' 5th wheel we need to know what pin box you have. As this information is not always stamped on the pin box you will need to take some measurements. I have included a chart from Gen-Y which shows the different pin boxes and measurements which will fit with their pin box.
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  • Determining The Pin Box Bolt Pattern On A 2012 Skyline Koala 27CDS 5th Wheel Trailer
    To know if the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR will be a compatible match with your 2012 Skyline Koala 27CDS fifth wheel you'll need to know the bolt pattern of the pin box you currently have on the trailer. Typically there is a tag on the front or side of the pin box that has some serial numbers on it that we can look up to determine the bolt pattern, but this isn't always the case. If you don't have a tag to go off of you can measure the bolts to...
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  • Dimensions of Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box For Lippert 1621/1621HD
    The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR has dimensions comparable to the Lippert 1621 it is designed to replace. Typically replacement pin boxes like this one keep the same or very similar clearance to the original. It has the same bolt pattern as the Lippert 1621 and mounts using your existing bolts. I have attached a review video along with a diagram below showing the dimensions of the Gen-Y for your reference.
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  • Could Gen Y Fifth Wheel to Gooseneck Pin Box Adapter Fit Elk Ridge 5th Wheel
    If your Elk Ridge fifth wheel has the very common Lippert 1621 style pin box then yes the Gen-Y adapter part # GY58GR would fit and work great. I don't have a way to look up what you camper has though so you'd need to check the sticker/plate on your pin box to determine what it is.
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  • Can the Height of the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box Be Adjusted
    In order to adjust the height of the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box part # GY58GR you'll need to do so at the connection to the trailer or the wings. That's the only way to adjust the height of a pin box. The design is made to accommodate all different types of trailers and tow vehicles. Since this is a gooseneck conversion you could use a taller hitch ball if applicable.
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  • Correct Gooseneck Hitch Adapter for Grand Design Reflection 295RL
    The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box part # GY58GR is designed for a trailer with the Lippert 1621 pin box pattern and a pin weight between 1,500 lbs - 3.500 lbs so as long as your trailer meets both these requirements it will be a great fit. The pin box weighs around 100 lbs so you'll need a few extra sets of hands to get the old one out and the new one in place. In regards to truck bed length compatibility, these direct replacement fifth wheel to gooseneck adapters...
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  • Which Gen-Y Fifth Wheel to Gooseneck Adapter fits Keystone CH29TRL06
    Your Keystone trailer has a Lippert 1621 pin box so the correct Gen-Y fifth wheel to gooseneck adapter would be the part # GY58GR that you referenced.
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  • How To Determine If Gen-Y Hitch 5th Wheel To Gooseneck Pin Box GY58GR Will Fit 32 Columbus Trailer
    The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR you were looking at will work with the OEM prep package in your 2021 Ford F-250, but is designed to replace the Lippert 1621 or 1621 HD pin box on a 5th wheel trailer. If you are not sure which pin box your trailer has, just send me a picture of the sticker on the pin box that lists the serial number and I would be happy to find the model of your pin box. If the sticker with the serial number is missing you will need...
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  • Correct Gen-Y 5th Wheel to Gooseneck Pin Box for 2011 Cedar Creek 5th Wheel
    I reached out to Lippert and unfortunately the number you provided does not correspond to anything that will allow me to identify your pin box. If you got that information off of the sticker on your pin box try looking for a 4 digit number like 1621, 1716, or 1116. If you aren't able to find any other information on the pin box, you may be able to contact the manufacturer with your VIN number and find out which pin box was used. If all else fails, you will need to measure the bolt pattern....
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  • Gen-Y Gooseneck Hitch Adapter that Could Fit 2016 Evergreen Tesla 3970
    Hey Josue, so I can't for sure identify what pin box you have on your camper but it does look like the standard Lippert 1621 that the Gen-Y part # GY58GR is designed to fit. If your current pin box is 12 inches wide and the distance between the front bolt holes and rear is 7-7/8 inches that would confirm this is correct fit.
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  • Dimensions of Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box for Lippert 1621
    The dimensions of the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box part # GY58GR are mirrored after that of the pin box it is designed to replace. In other words, pretty much every pin box that will bolt up to the Lippert 1621 pattern will have very similar dimensions so you won't really gain or lose much clearance when switching pin boxes. That said, I have attached for you below the dimensions of the above pin box if you want to be certain of clearance.
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  • Will the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Boxes Void the Frame Warranty
    The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Boxes like part # GY58GR is not approved by Lippert no, but that doesn't mean you should not consider this for your trailer as Lippert cannot simply void your frame warranty just by installing the pin box, you are covered under the Magnuson–Moss Warranty Act. If there was an issue with the frame because of something that the pin box did then that would be a different story but as far as I know, the concerns with the product are...
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  • Does Gen-Y Fifth Wheel to Gooseneck Adapter Fit in Place of Lippert 1621
    The Gen-Y Fifth Wheel to Gooseneck Adapter part # GY58GR is the correct adapter to fit in place of a Lippert 1621 but it's not going to give you additional offset beyond what your pin box has. The problem is that your flat bed is much longer than a standard truck bed which means that there isn't enough clearance between the trailer overhang and the truck bed. Unless you could install a goosneck hitch 8 inches back from behind the rear axle line in the bed of the truck there wouldn't be...
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  • How To Find Correct Gen-Y Hitch 5th Wheel to Gooseneck Pin Box for Genesis Supreme Overnighter
    In order to choose the correct Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box for a Genesis Supreme Overnighter Toy Hauler you'll need to know the hitch weight and pin box model number. The part # GY58GR for example is designed for a hitch weight between 1,500 - 3,500 lbs and fits a Lippert 1621. If you don't know what pin box model you have, simply look on the tag of the pin box or chassis mounts. If no model is found you'll need to reach out to the chassis manufacturer. I...
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  • Can I Use the Gen-Y Shock Absorbing 5th Wheel to Gooseneck Pin Box
    Thank you for the photo! Yes, the Gen-Y Shock Absorbing 5th Wheel to Gooseneck Pin Box # GY58GR will work to replace your existing MORyde pin box for a Lippert 1621HD pin box. The sticking point here is going to be with your 2017 Ford F-350 with the 6-1/2 Foot bed since this pin box will not help with the clearance required on most short bed trucks to avoid hitting the cab of the truck during tight turns. You can use this formula to see if you'll have enough clearance to make a 90 degree...
    view full answer...
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Info for this part was:

Employee Lindsey S
Edited by:
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Expert Research:
Jameson C
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Updated by:
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