Recommended Shocker 5th Wheel to Gooseneck Pinbox to Replace a Rhino Pinbox

Updated 03/21/2026 | Published 03/14/2026

Products Featured in This Question

Shocker 5th Wheel to Gooseneck Pinbox for Lippert 1621/0719 and Rhino Box - 24K GTW - 6K TW

(39)

$1799.98

Safety Chain Kit for Shocker Hitch 5th Wheel to Gooseneck QuickAir Hitch - 42" Long - 24K lbs

(10)

$142.07

Question:

I just want to make sure this will fit ny 5th wheel. I’ve attached pics of my Rhino box. I have a 40’ GD, 16800 GVWR. I tow with a Ram, 8’ bed.

asked by: Charles L

Expert Reply:

Hey Charles. I didn't receive any pictures but they make those Rhino Boxes pretty easy to identify when they slap that giant label on the side pin box. If you would like to email me the pics directly you can send them to the email address you receive this response from.

The Shocker 5th Wheel to Gooseneck Pinbox item # SHK23MR will indeed fit a Rhino pin box bolt pattern. It has up to a 24,000 lbs towing capacity and a 6,000 lbs pin weight.

Please note you will also need the Safety Chain Kit for Shocker Hitch 5th Wheel item # SHK35MR. Safety chains are required for gooseneck connections and they are not included with the pin boxes.

What year and specific model is your Grand Design?

You can add this information, along with any other questions you have, where it says Add Comment.