A 5th Wheel Trailer Needs to be Towed Level by Adjusting the Kingpin and/or the 5th Wheel Hitch  

The height setting you'll need to use when installing the Curt A16 head part #C16520 that you referenced is going to be based on what your trailer needs to sit level. The height of the head is adjustable as well as how the pin box attaches to the…

The Curt #C16521 5th wheel hitch you mentioned is indeed height adjustable from 17-1/2 to 21-1/2 inches in height. Some of the bed sides on todays trucks are pretty tall (like the Ford F Series), so the hitch heights needed to increase as well. To…

So the lifespan and when to change a lube plate doesn't have a hard and fast answer because there are numerous variables associated with how long it will last. The terrain you are going over, the weight of your trailer, and the frequency with…

When adjusting the height of a pin box such as #LC1191191 it is important to support the pin box when removing the bolts. I recommend 2 or 3 buddies to give you a hand and make sure no one is beneath the pin box while raising or lowering it. With the…

Yes, you would want the king pin plate on a fifth wheel trailer to be as level as possible. This will help make connecting to the hitch easier but most hitches have tilting capabilities in the heads so if it's not perfectly level it will still be…

The easiest solution would be if you could lower the head of your fifth wheel hitch, or raise the pin box of your trailer. Either of these options should allow your trailer to sit more level. You would want to make sure you have between 4-6 inches…

Because it's lighter, less expensive, has fewer moving parts and is mechanically less complicated I'd recommend going with the Gen-Y #325-GH-8040 shock absorbing pin box versus a Trailair Flex Air like part #LC328492. The Trailair features a…

What you can try doing, if you haven't already, is adjusting your pin box to the highest bolt and then adjusting the head height on your B&W hitch the same amount. This will lower the nose of your trailer some but still maintain the trailer…

If the jaws are coming open with your Curt A16 5th Wheel Trailer Hitch w/ R16 Slider #C16521 what is often the case is that you may not be coupling with the trailer at the correct height, which would not allow the kingpin and hitch to properly…

For your 2019 GMC Sierra 3500 you will want the Curt Q25 5th Wheel Trailer Hitch w/ R24 Slider item #C16566. This hitch has a 24,000 lbs capacity and is our highest capacity slider. The 2-jaw locking system gives you less rattle and more security. It…

You covered the basic ways of adjusting the height of a 5th wheel trailer (lowering the hitch and raising the pin box). And since the axles are already below the leaf spring stacks there is one other thing that you can do to get more height at the…

I have attached for you below a dimensional drawing of the Lippert 1621 5th Wheel Pin Box part #LC1191191 which was provided by Lippert. This gives a frame of reference for the height by measuring from the bottom of the skid plate to the top of the…