MORryde Rubber Pin Box (3500/4400/6200 Series)

The MORryde Rubber Pin Box is a proven upgrade for 5th wheel owners tired of harsh, jarring tow experiences.

4.6

HitchHaven score4.6 out of 5 · our editorial rating

Rubber cushioning technology replaces solid steel pin mount
Up to 6 inches of articulation for isolating road shock
Independently replaceable rubber cushions without removing box
Reduces chucking, bouncing and chassis stress during towing
Compatible with most 5th wheel kingpin configurations
Weather-resistant powder-coated steel housing

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Overview Specs Pros & cons Full review Related

The verdict

The MORryde Rubber Pin Box is a proven upgrade for 5th wheel owners tired of harsh, jarring tow experiences. By replacing rigid steel-on-steel movement with a cushioned rubber articulation system, it meaningfully reduces chucking and shock transfer to the trailer frame and tow vehicle. While the investment and installation effort are higher than a basic pin box, the long-term payoff in ride comfort, reduced component wear, and serviceable design makes it a worthwhile upgrade for frequent or full-time RVers.

Spec plate

Weight Capacity: 15,500 to 21,000 lbs (series dependent)
Articulation Range: Up to 6 inches
Housing Material: Powder-coated steel
Cushion Type: Replaceable rubber elastomer
Compatible Hitch Type: 5th Wheel Kingpin

Pros & cons

What we like

Dramatically smooths ride quality on rough roads
Reduces wear on hitch, frame and kingpin components
Rubber cushions are user-serviceable and replaceable over time
Noticeably quieter towing experience, less banging and rattling
Durable construction built for long-term heavy use
Backed by MORryde's reputation in RV suspension products

What to watch

Higher upfront cost compared to standard pin boxes
Professional installation recommended for proper fit and alignment
Added weight versus some lighter aluminum alternatives
Rubber cushions will eventually wear and need replacement
Not a drop-in fit for every trailer frame without modification

Full review

The MORryde rubber pin box is a heavy-duty towing accessory engineered for fifth wheel RVs and campers that spend serious time on the road facing rough pavement, washboard surfaces, and unpredictable highway conditions. Unlike a traditional rigid pin box, this design incorporates a series of rubber cushions or rollers that absorb the shock and chucking motion transmitted between the truck bed and the trailer frame during towing. This isolation system significantly reduces the jarring impacts that typically rattle through the hitch connection, protecting the frame, cabinetry, appliances, and everything stored inside the rig from the cumulative wear caused by road vibration over thousands of miles.

Built with a steel housing and automotive-grade rubber elements, the MORryde pin box is constructed to handle substantial pin weight while maintaining durability through years of towing cycles. The rubber components are positioned to allow controlled movement in multiple directions, which helps smooth out the lateral sway and vertical bouncing that occur when crossing uneven lane joints, potholes, or railroad crossings. Many owners who switch from a standard pin box to this rubber-cushioned version report a noticeably quieter, smoother connection point, with less banging and clunking felt in the cab of the tow vehicle, making long highway stretches more comfortable for both driver and passengers.

Installation is designed to work with existing fifth wheel hitch setups, and the pin box typically bolts into the same mounting location as factory pin boxes, making it a practical upgrade for RV owners looking to improve towing dynamics without replacing their entire hitch system. Beyond comfort, the reduction in repetitive stress helps preserve structural integrity over the life of the trailer, lowering the likelihood of frame fatigue, loosened fasteners, or stress cracks that can develop from constant jolting. For full-time travelers, weekend campers, and anyone hauling a fifth wheel across varied terrain, the MORryde rubber pin box serves as a practical investment in smoother, quieter, and more protected towing performance.

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