Replacement Pin Box to Reduce Chucking on 5th Wheel Trailer with Lippert 1621 Pin Box
Question:
I tow a 2002 Montana 3280RL with 2005 F250 6.0 short bed. Hitch is Reese #30051 slider. Lippert 1621 pin box. This is a new setup for us. I am experiencing a lot of chucking, which makes the ride uncomfortable. Im not sure about up and down motion because of the excessive chucking. Im not sure which pin box would be best. Theres the Mot/Ryde, TrailAir and Airborne. We are retired on a fixed budget, so price is a major factor. The prices range from $500-$1200. Can be even more expensive if I purchase the wrong one, and need to replace it, thus doubling the expense. Help!
asked by: Harris B
Expert Reply:
For the Lippert 1621 pin box the most inexpensive option that will improve the chucking and overall ride quality when towing your 5th wheel trailer is the Rota-Flex, # LC328330. It uses a pivoting mechanism and rubber compound to dampen chucking. This version is rated for 18,000 pounds. there is also a 21,000 pound version, # LC328329.
The next step up is the 5th Airborne # 5AB-E1621-16K which uses both a shock and an air bag to reduce chucking and vertical movement. It will be more effective at reducing chucking than the Rota-Flex pin boxes above. It is rated for 16,000 pounds. There is also a 21,000 pound version, # 5AB-E1621-610.
The cream of the crop is the Flex Air, # LC328492, rated for 18,000 pounds. It also has a shock and air bag but also has the pivoting mechanism and rubber dampening associated with the Rota-Flex models to provide the best ride quality. I have linked video reviews of these 3 types of pin boxes for you.
Any of them will improve the ride quality. Some will just help more than others.
Products Referenced in This Question
Curt Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 21000 lbs GTW
- Fixed Turret
- Lippert 1621
- CURT
more information >
Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 18000 lbs GTW
- Fixed Turret
- Lippert 1621
- Lippert 1621HD
- Lippert
more information >
Product Page this Question was Asked From
Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 18000 lbs GTW
- Fixed Turret
- Lippert 1621
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
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on Fifth Wheel King Pin
