Upgrade the factory pin box on your fifth-wheel trailer to this cushioned model that dampens road shock and reduces back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the internal rubber spring requires no maintenance.
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Specs:
Most standard pin boxes are constructed of steel and are built with the sole purpose of connecting your fifth-wheel trailer to your tow vehicle. There is no cushioning built in, so a factory pin box doesn't do anything to provide a comfortable ride when you're hauling your fifth-wheel trailer.
This MORryde pin box, however, is built with an internal rubber spring that absorbs road shock and vibration at the connection point. So if you're driving on unpaved roads or uneven pavement, this pin box will prevent any road shock and vibration you encounter from transferring from your tow vehicle to your fifth-wheel trailer and vice versa. In other words, the rubber spring takes the brunt of the impact so you and your towing setup don't have to. And because this unit uses a rubber spring instead of an internal air bag like some other upgraded pin boxes, there's no maintenance required.
Although this pin box can tow up to 23,000 lbs, the internal rubber shear spring is optimized for trailers that range from 14,001 to 18,000 lbs. A rubber spring built for 23,000-lb trailers would be too stiff to provide any cushion for an 14,000-lb trailer, while a rubber spring built for 14,000-lb trailers would be too flexible for a 23,000-lb trailer. To get the best results from this cushioned pin box, the sweet spot is a trailer in the 14,001-lb to 18,000-lb range.
Chucking, the back-and-forth jerking movement you feel in your cab when towing, occurs most frequently during starts and stops and while making turns. A typical, factory pin box creates a rigid connection without much give. So when a harsh stop occurs, all of the trailer's forward momentum gets forced through that stiff connection, slamming the king pin in the hitch and jerking your truck around.
To combat this, glide pads are built into the MORryde pin box that allow the skid plate to shift up to 3" forward and backward and 1-1/2" side to side to compensate for some of that violent motion so that you don't have to feel it in your cab.
This MORryde pin box is a direct replacement for your existing Lippert 1621SHD pin box, so the installation is very straightforward. After removing your old pin box, the MORryde can be mounted into place using the same hardware and bolt holes used by the factory pin box.
Because of the weight of the unit, you'll want a couple of friends to help you lift it into place during installation. Once the hardware is securely bolted down, you'll be ready to go.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're going to take a look at this MORyde Cushioned Fifth Wheel Pin Box for the Lippert 1621SHD Pin Box. Now this is built for trailers with a gross vehicle weight rating of 14,000 pounds to 18,000 pounds. And this cushioned pin box replaces your current one for a lot smoother towing experience. As we mentioned, it is designed to replace the Lippert 1621SHD Pin Box. This will let you enjoy a nice chuck-free, jerk-free ride thanks to the rubber shear spring that's on the inside.
That rubber shear spring will reduce back-and-forth chucking, it absorbs the jarring movement at the connection point, and it'll allow up to one and a half inch side-to-side movement and up to three inch front-to-back movement. I just want to zoom in and show you where that, we're talking about that rubber shear spring. It's, you won't be able to see it, but it's on the inside right there, right above the king pin. And what that rubber shear spring does, it dampens the transmission of the forces from your fifth wheel to your vehicle, makes your starts and stops jerk free, requires less maintenance than the air-filled spring model pin boxes. Some of the pin boxes out there use air bags and you have to constantly check the air pressure in them, make sure it has the correct air pressure, either increase it or decrease it.
These you don't have to worry about any maintenance once they're installed, they're all ready to go. Now also when they're installed, this pin box will give you the same king pin location right here as the original manufacturer, this will reduce the stress on your trailer frame. Now this is a nice fast, easy, bolt-on installation. You do want to make sure to make note of the bolt hole location of the factory pin box because you'll want to re-mount this MORyde pin box in the same hole settings using the existing factory hardware. This pin box does exceed the CSA standards.
It is made in the USA. Again the application, this is for fifth wheel trailers with 14,000 pound to 18,000 pound gross vehicle weight rating. The weight capacity on this pin box is 23,000 pounds, but you do want to remember that this pin box capacity will not change the overall gross vehicle weight rating of your trailer. And the last thing I just want to give you about three measurements on the pin box. The first one is going to be the width which will be measured outside to outside.
It's going to be 12 inches. And the other two measurements, we're going to measure from the center of the king pin up here to the center of the front row of bolt holes, and then from the center of the king pin to the back row of bolt holes. Now what I've done is where the center is I've marked it right up here to make it easier to put my tape measure on. So if I go from my mark there to the center of the front row of holes is 17 3/4 inches, and then if I go from the center of the king pin to the center of the back row of holes, 25 5/8 inches. But that should do it for the review on the MORyde Cushioned Fifth Wheel Pin Box for the Lippert 1621SHD Pin Box..
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