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Expert Answers about Chevrolet Fifth Wheel King Pin


  • Comparing Jaw Types on Fifth-Wheel Trailer Hitches
  • In regards to fifth-wheel hitches, there are a number of jaw types. A slide bar jaw is found on the less expensive hitches, such as the Pro Series # PS30129. This type of jaw is a secure one for your trailer but you will notice some king pin noise and some chucking as the fit is looser. This design will automatically close around the king pin once it is in place where the double- and single-jaw models will not. The double jaw design is more snug and secure than a slide bar jaw and you...
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  • Pros and Cons of 5th Wheel Hitch With a Slide Bar Jaw Versus a Dual Jaw Hitch
  • The difference between a slide bar jaw and a dual jaw is how tightly the fifth wheel king pin is held. Both do a good job securing the king pin, preventing it from coming loose. The Dual Jaw will hold the king pin much more tightly, preventing the king pin from rattling around in the pin box. Any movement of the king pin in the hitch jaws will be easily felt and heard in the truck cab. Every time the you brake or accelerate, if there's any movement in the hitch jaws-you're gonna feel...
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  • What is the Difference Between the Standard and Air-Ride 5th Wheel King Pin
  • The stock Lippert 1621 pin box and air-ride pin boxes have some differences. For example, the Lippert 1621 5th wheel pin box # LC1191191 is a direct replacement for a worn out pin box. Whereas the Fifth Gear 5th wheel air ride coupler # RP78FR will have cushioned shocks with an adjustable air spring and shock absorber. Therefore, reducing longitudinal shock or chucking by nearly 60 percent and decreasing vertical shock by 44 percent. I included a video review about the Fifth Gear 5th...
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  • Differences Between Pro Series 20K 5th Wheel # PS30121 and Reese 20K # RP30084
  • The design of the head unit is the difference between the two fifth wheel hitches you mention. The Pro series uses a double jaw set-up to lock the king pin into place, while the Reese model uses a single hook that holds the king pin more tightly, preventing any movement of the king pin that would be felt by the driver or passengers. The funnel on the Reese unit is also much wider, which makes hitching the vehicle to the trailer easier. The entire top plate is wider, providing more stability...
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  • 5th Wheel Hitch Recommendation Between the Curt Q24 Hitch and the Reese Select Plus 20K Hitch
  • The Curt Q24 Fifth Wheel Hitch, # C16245, and Reese M5 Fifth Wheel Hitch, # RP30928, will provide more durability and less movement than your Reese 15K hitch. Keep in mind there should be a certain amount of movement of the king pin in the jaw. If the jaw was tight against the king pin, then the jaws could bind or break when turning. For your situation I would recommend the Curt Q24 Hitch because it uses a 2-jaw locking system that provides 360-degree contact to the king pin. It also...
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  • Differences Between Curt A20 and Q20 5th Wheel Hitch
  • Both the Curt # C57FR Q20 and # C84FR A20 are compatible with the pucks in the bed of your 2021 GMC Sierra 2500 long bed. There are a few important differences. The A20 uses an interlocking jaw that holds the king pin tightly all around its 360º circumference. The Q20 uses a 2 piece jaw that doesn't interlock, so it doesn't hold the king pin quite as tightly as the A20 does. This means that the king pin won't move around in the jaws which provides a smoother ride. The A20 uses a torsion...
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  • 5th Airborne Air Ride Coupler and Trailair Tri-Glide Coupler Comparison for a Lippert 1621 Pin Box
  • The 5th Airborne Premium Fifth Wheel Air Ride Coupler, # RP61422, is the premium air ride pin box that would be equivalent to the Trailair pin box, # LC158778, for replacement of a Lippert 1621 pin box. We have carried the Fifth Airborne air ride couplers and for some time and our customers are very pleased with them, sending excellent reviews and we have encountered very few problems with this system. The Trailair pin boxes are newer to us but the information we have is that users are...
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  • Differences Between Curt A25 C16180 and Q25 C16265 5th Wheel Hitches
  • The hitch jaws that grip the 5th wheel's king pin and the suspension system (for the lack of a better term) for the hitch head are the main differences between the A25 and the Q25. The A25 like the # C16180 uses an interlocking jaw system that does a better job of holding the king pin tightly, making contact with the king pin all around its 360° circumference. This leads to less rattling and banging which makes for a more comfortable ride. The A25 use a torsion dampening system in the...
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  • Comparing Reese Elite and M5 Fifth Wheel Hitch
  • The Reese Hitch M5 Fifth Wheel # RP30921 has the edge over the Elite part RP30142 that you also mentioned. They both share very similar heads/jaws and provide excellent king pin contact but the advantage the M5 has is that it has cushioning built into it to provide a smoother ride quality. With the RP301412 you'd use the included universal wedge of your Reese Revolution and for the M5 you would want to use the RP44FR. You'd want to use the short end of it.
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  • Pro Series 16k Fifth Wheel Hitch Comparison with Titan 16k Hitch
  • The Pro Series 16k Hitch part # PS30119 that you referenced is considered an entry level hitch when compared to the Reese # RP30047 that you also referenced. Between the two the Titan would provide you with a much smoother ride. The jaw design of the Titan provides 360 degree contact with the king pin which help prevent that start/stop movement you described. This is also known as, "chucking." The Titan also has cushioning built into the head for added smoothness. It would be your better...
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  • What is Difference Between Curt A20 and Q20 Fifth Wheel Hitches
  • The Curt A20 # C16140 and Curt Q20 # C16130 are very similar 5th wheel hitches with the A20 being the more recent and improved version. The major difference is the A20 has interlocking jaws to further secure your king pin as opposed to the Q20 jaw locking system that do not interlock. This interlocking design is intended to give you more king pin contact on all sides for less jarring and chucking. The 360 degree head design that the Q series had didn't offer as much of a difference in...
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  • Which Is Better, The Curt A-Series Or Q-Series Fifth Wheel Hitches
  • The Curt A-Series line is the premium version over the Q-Series line and comes with a few differences. One major difference being the jaw design for the A-Series, which overlaps itself instead of just butting up to itself like the Q-Series does. This allows for a more secure connection to the king pin. The other major difference is that the head is made stronger in order to withstand the pressure from a rotating pin box. The Q-Series is incompatible with rotating pin boxes like the Reese...
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  • Difference Between Curt A25 C16046 and Q25 C16049 - 2019 Ram 2500 Long Bed w/ Factory Prep Package
  • The primary difference between the Curt # C16049 Q25 and the # C16046 A25 is the way the hitch head pivots and the way the hitch jaws are constructed and how they grip the king pin. The Q25 # C16049 uses a spherical axial bearing that allows the hitch to have a 360 degree pivot and a double jaw hinge. The way the head pivots makes it a little easier to hook up the fifth wheel on terrain that isn't perfectly flat, but the pivot means that the hitch isn't compatible with rotating pin boxes...
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  • Reese 5th Airborne Sidewinder for Use with 2017 Ram 2500 Short-Bed Pickup
  • Sidewinder replacement pivoting 5th wheel pin boxes provide more clearance than all but a few sliding hitches, a full 22-inches. Most slider hitches range from 10- to 14-inches of slider travel. Unlike most sliders, Sidewinders do not require you to get out of your truck every time you need to make a tight turn. The slider hitches and install kits for your 2017 Ram 2500 with 6-1/2-foot bed (and without the factory rail kit) are shown on the linked page. The Andersen Ultimate Connection...
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  • Trailair Air Ride LC158777 vs. LC155943
  • That's a really good question, and like you said, the longer length of the Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 LC158777 is only going to matter somewhat with a short bed truck (and even in that case, it wouldn't matter enough to where someone with a short bed truck could get away with using a fixed 5th wheel hitch as opposed to a sliding hitch). The two king pins are otherwise the same, and since you do have a long bed I highly recommend sticking with the direct replacement...
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  • Which is Better Fifth Wheel Hitch for 2020 Ram 2500 Rail Kit A16 or E16
  • For the OEM rail kit of your 2020 Ram 2500 long bed you are going to have a much nicer towing experience with the Curt A16 fifth wheel hitch part # C16520-16021 over the E16 # C16515-16021 because of the much nicer jaw design of the A-Series hitch. It provides 360 degrees of contact with the king pin of the trailer whereas the E16 only uses a slide bar to hold it in place which allows quite a bit more movement which translates into noise and "chucking" when towing. The weight between the...
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  • Comparing Demco Hijacker Sliding Fifth Wheel Hitches for 2019 Ford F-350 With OEM Pucks
  • Aside from the weight rating there is really only one very slight difference; the 21K Demco Hijacker Autoslide 5th Wheel Hitch # DM8550038 has a diamond tread pattern on the base while the 18K Demco Hijacker Autoslide 5th Wheel Hitch # DM8550024 does not have this pattern. That diamond tread pattern is only for aesthetics and does not affect the hitch in any way. You are not alone in loving the Hijacker as it is one of the best and most popular fifth wheel hitches we sell for a reason....
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  • Difference Between the Sport-Rite and the Ride-Rite Air Helper Springs for the 2003 Chevy Silverado
  • Air-spring kits are vehicle-specific kits. Kit compatibility is based on your vehicle suspension, all kit types will not work on every vehicle. The Ride-Rite, item # F2190 will provide additional support for existing suspension and have higher weight capacities. These kits are designed for vehicles with heavy duty suspensions like the 1500 HD series Chevrolet trucks. The Sport-Rite will also provide additional support for the vehicle but not in the same capacity as the Ride-Rite system....
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  • Differences Between Curt Q24 A30 and Reese M5 5th Wheel Hitches
  • There are some differences between the Reese # RP30922 M5 Series and the Curt Q24 # C16545-16017 fifth wheel hitches. The M5 has a higher capacity at 27,000lbs versus 24K for the Curt Q24. The M5 series offers less height adjustment at 2-1/2 inches than the 4 inches offered by the Q24, but the M5 has the tallest available adjustment at 18-1/4 inches which is sometimes important. The M5 has a 4 way pivoting head, front to back and side to side while the Q24 uses a unique spherical bearing...
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  • Difference Between Curt A25 and Q25 Fifth wheel Hitches
  • That's a really good question, they do look very similar. I recommend the A25 # C16046 for your 2019 Ram 3500 with an 8ft bed and factory puck system. The A25 has a 2 piece jaw that overlaps slightly, where the Q25 butts up against the other. This provides a more solid connection to the king pin resulting in a secure quiet ride. The head is also slightly different on the A25 than the Q25. Curt strengthened the A25 heads so that they can be used with rotating pin boxes, unlike the Q25....
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