Recommendation For Lippert Flex Air 5th Wheel Pin Box For 2014 Ram 3500 Crew Cab w/Long Bed

Question

Question:

Want to make sure I order the right lippert flex air. I have included picture, have 2014 Ram 3500 crew cab and long bed. The 5th wheel is a 2016 Solitude gvwr is 15000.

asked by: Darwin V

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Expert Reply:

I confirmed with Lippert that your pin box is a 1621 model so I recommend the Trailair Flex Air 5th Wheel Pin Box, Item # LC369535. The Flex Air will greatly reduce chucking, absorbs road shock, and minimizes bounce. It has a 21,000-lbs weight capacity and should serve you well.

Contact me if you have any other questions.

expert reply by: Brint H

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Answer 1

I checked with our contacts at Trailair and the correct torque figure for the pivot bolt of your Trailair pin box is 50 ft lbs.

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Answer 2

I reached out to my contact at LIppert and based on the photo showing two verticle rows of bolt holes he identified your RotoFlex as having a 1621 bolt pattern. The FlexAir replacement with a 1621 pattern is the Lippert #LC369535.

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Answer 3

Yes, the SumoSprings Trailer Helper Spring kit part #SS26MV is perfectly compatible with the MORryde upgraded suspension kit you have as well.

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Answer 4

I recommend using the SumoSprings Trailer Helper Springs #SS26MV on your 2021 Grand Design Momentum 395M. These springs are rated for use on axles with a capacity of 5,000-8,000lbs and are mounted below the leaf springs. Your Momentum has three…

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Answer 5

You will be okay to use the SumoSprings Trailer Helper Springs #SS26MV on your trailer. SumoSprings recommends that there be between 1/4" and 1/2" of preload in the springs when installed. As the springs are 5" tall you will have…

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Answer 6

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 7

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 8

Yes, axle spread and wheel base by definition are the same measurements. You will measure from the center of one axle to the center of the 2nd axle to determine what you axle spread is. This may be difficult as some wheels and covers will make this…

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Answer 9

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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Answer 10

I contacted MORryde and this does happen from time to time as the weight of the trailer can spread out the axles due to downward pressure on the springs/suspension. Odds are the 35" wheel base #MR27ZR will be the correct one for you, but they…

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Answer 11

The absolute best cushioned equalizer that fits the dimensions you mentioned having would be the MORryde ALLTREK 4000 part #MR89DR as this is only option to provide vertical and horizontal cushioning. This would make a big difference and you'd be…

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Answer 12

I spoke with my contact at Trailair and from your serial number we were able to determine that your trailer came with a 1621 HD pin box which is a long pin box style. I was unable to obtain the exact part number for your Trailair pin box but from the…

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Recommendation For Lippert Flex Air 5th Wheel Pin Box For 2014 Ram 3500 Crew Cab w/Long Bed

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