Comparing Rota-Flex and Gen-Y 5th Wheel Pin Boxes

Question

Question:

How does the GenY compare to the Roto Flex by trailair?

asked by: Jeff K

0

Rota-Flex Pin Box Profile
(click to enlarge)

Expert Reply:

Great question, Jeff!

When the Rota-Flex first came out it renovated what a pin box could do and be, but at this point in time that technology is a little more dated and the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 is the "new kid on the block" so it is definitely an upgrade to what you currently have, and you'll be happy with it for sure.

The part number mentioned above will fit in place of a Lippert 1621 or 1621HD pin box and is great for a calculated tongue weight in the 1,501-3,000 lbs range. To find your calculated tongue weight you need to take the GVWR of your trailer and multiply it by 0.22 - if it falls within the range mentioned above then this Gen-Y pin box is what you need.

expert reply by: Jon G

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Gen-Y Executive Pin Box Tongue Weight Specs Diagram
(click to enlarge)

Jeff K.

3/1/2024

Hi Jon, My 376TH has a 20k GVWR, does GenY make a hitch in these parameters? Also, will a 20k Reese hitch be adequate to pull this camper? Thanks!

Reply

Jon G.

3/1/2024

@JeffK Thanks for the follow ups! Your 20K GVWR does mean you have a 4,400 lb calculated tongue weight, and while this does look to correlate to the part # GY68GR, Gen-Y has a chart that I've gone back and attached to my initial answer that shows they actually say you need the next size up with part # GY46FR - sorry for any confusion! When it comes to the weight capacity of a 5th wheel hitch I always recommend having a little cushion because if you were to load your 5th wheel up to max capacity then you'll be pushing the hitch to it's max capability. At the very least I recommend using the Curt A25 # C16180, but for something a little nicer I really like the Curt PowerRide # C22ER because it has an even higher weight rating (for future-proofing) and is just a nicer hitch overall in both function and performance.

Reply

Jeff

3/1/2024

@JonG Thank you, this is very helpful!!

Reply

Jon G.

3/1/2024

@Jeff Happy to help out!

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See All (5) Replies to Jeff K. ∨

Answer 1

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 2

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…

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Answer 3

Most standard pin boxes will not make a 90 degree turn in anything less than an 8 foot truck bed, but that is due to being too close to the cab - not the rails. You mentioned you wanted to replace the Rota-Flex with the Gen-Y hitch. Your old pin box…

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Answer 4

To best combat chucking, between a MORryde and Rota-Flex pin box, the best option to replace your Lippert 1621 is the Rota-Flex, with the correct part number being the following: - Trailair Rota-Flex 5th Wheel Pin Box #LC328330 While no pin box is…

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Answer 5

Yes, a Gen-Y pin box, like part #325-GH-8040 you're looking at, is compatible with the Demco Hijacker Autoslide 5th wheel hitch as long as you use the Capture Plate #GY98FR. The Gen-Y pin boxes are specific on what they are replacements for,…

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Answer 6

Choosing the right height setting for your 5th wheel hitch is a combination of a few different variables. First of all you want your towing setup to be as level as possible. With your Montana High Country 340BH level you will want to measure from the…

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Answer 7

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 8

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.…

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Answer 9

In general the height between the fifth wheel pin boxes aim for the same figures so that they don't cause the trailer to sit drastically different. I attached a dimension picture for the #325-GH-8040 for you to check out and compare to what you…

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Answer 10

From previous customers with the Grand Design Solitude S Class ST2930RL we know that know that it has the Lippert 1621 pin box model and since we know the GVWR of the RV is 15k so for a MORryde you'd want the part #MR84VR.

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Answer 11

You do not have to use a sliding 5th wheel hitch in a short bed truck. In many cases, truck beds shorter than 8 ft do not have enough clearance between the trailer and truck to execute sharp turns. This is why sliding hitches were invented. Due to…

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Answer 12

Most fifth wheel rails are made to the same industry standard dimensions. They aren't all though. If you measure 22 inches on center between the two rails and they look like the rails of the #RP30035 that you referenced they would be the industry…

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Comparing Rota-Flex and Gen-Y 5th Wheel Pin Boxes

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