Upgrading To Gen Y Shock Absorbing 5th Wheel To Gooseneck Hitch On Grand Design Solitude 390RK
Published 10/29/2026
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Question:
We want to upgrade our Grand Design Solitude 390rk MorRyde pin box to a Gen-Y The EXECUTIVE Fifth Wheel-to-Gooseneck Pin Box. Is SKU: GH-8075AL the correct model we need?
asked by: Ginny N
Expert Reply:
Good morning Ginny.
The Gen-Y Executive # GY95GR (GH-8075AL) looks like the correct option for your Grand Design Solitude 390RK from what I've found, but you will want to verify which pin box bolt pattern you have. From what I've found, these commonly come with a MORryde pin box using the Lippert 1621 mounting pattern, which is what the # GY95GR is designed to replace.
There is also the Gen-Y Executive # GY45GR (GH-8076AL), which is designed for the Lippert Rhino mounting pattern. Both have a 6,500-lb maximum pin weight rating.
Can you find the model number on your existing MORryde pin box? If not, I've also linked an article that helps you measure the bolt holes to determine which bolt pattern you have.
Product Page this Question was Asked From
Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD - 30K GTW - 6.5K TW
- 5th Wheel Gooseneck Adapter
- Adapts Trailer
- 5th Wheel Trailer to Gooseneck Hitch
- No Extra Clearance
- 30000 lbs
- Replaces Pin Box
- Shock Absorbing
- Lippert 1621
- Lippert 1621HD
- Gen-Y Hitch
more information >
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