Curt Flex Air 5th Wheel Pin Box Review Video

The only difference between the Curt Flex Air and Lippert Trailair #LC155943 is simply just the name. Lippert purchased Curt awhile back and has been rebranding some of their products under the Curt name so as we go through stock the Lippert Trailair…

Because the FlexAir pin boxes have a part that pivots it should not be used with the Anderson Ultimate 5th wheel connection. You can however use the Trailair equivalent which is #LC158778 for the Lippert 1621 pin boxes.

The Andersen Ultimate Connection 5th Wheel Trailer Hitch System with Adapter - 20,000 lbs #AM3200 is compatible with the Curt Pin box like #LC158778. If you want to use a Curt Flex Air 5th Wheel Pin Box #LC328492 then Andersen states you need to use…

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…

The Trailair Flex Air 5th Wheel Pin Box part #LC369535 which is rated for 21,000 lbs is constructed of a thicker metal and also has beefier welds when compared to the Trailair Flex Air 5th Wheel Pin Box part #LC328492 which is rated for 18,000 lbs.…

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

There should be a sticker or plate on the pin box itself that lists the manufacturer and model of the pin box. If it is not present then there are some measurements you can take to determine the model of the pin box. I have included a link that…

Even though both the Trailair Air Ride #LC158778 and the Trailair Flex Air #LC369535 look similar and incorporate the air bag and shock to help improve your towing experience, the Flex Air has a few upgrades that the Air Ride does not have. The 2…

Both the Curt #LC158778 and the Curt Flex Air #LC369535 would be compatible with both the Lippert 1621 and 1621 HD OEM pin boxes, as both share the same mounting bolt pattern. The only difference is the higher capacity of the HD model. Both pin boxes…

I reached out to my contact at Lippert and you do have the 1621 pin box on your 2010 KZ Durango LX. If you are looking for a cushioned pin box, I recommend the Trailair Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs #LC328492 or the 21,000 lb…

According to Lippert you will need the Curt Flex Air 5th Wheel Pin Box #LC328492 to replace the Curt Rota-Flex pin box on your 2022 Alliance Paradigm 310RL 5th wheel. They said you will have the 1621 bolt pattern for your mounting bolts.

The Curt PowerRide for GM tow package part #C36WR that you referenced weighs 91 lbs.