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Post by milpol4523 on Aug 23, 2017 8:37:59 GMT -5
Trailair Flex Air or MOR/RYDE 5th wheel pin box
I'm not new to Rving or hauling 5th wheel travel trailers. the new unit is a toyhauler 37'8" long.
8550 dry weight
the existing pin box is a limpert lipp1621 rated GVRW for 15500lbs.
I've seen a lot of units equipped with both.
etrailer recommends "The Flex Air pin box part # LC328492 would be what I recommend. It has cushioned vertically and horizontally which will greatly reduce the chucking. This has an 18k capacity as well so it would be more than strong enough."
Advantages - disadvantages on both are sought before purchase.
We are planning on owning this unit for the next 5 yrs. maybe longer so when hauling more and more closer to retirement i am getting tired of the poor overpass transitions where transport truck tire marks have covered the pavement giving us advance warnings of the highway to ditch to highway like surfaces.
Thanks in advance
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Post by Chuck on Aug 23, 2017 18:51:28 GMT -5
milpol4523 We had a Trail-air brand new when we bought our G384FLT, I told them right away to take off the Trailair an put on the MorRyde 18k Pin box. The Trailair flexes up and down but not front to back, while the MorRyde flexes front to back etc, the reduces the chucking about 95 or more percent ... While before while going over bumps an overpasses with our old trailer which had a Trailair we would be lifted of the seat, not with the MorRyde pin box now on a 5th wheel that is 3k heavier that are old one ... Is there at time's some chucking, yes, but as I said 90 percent if not more has gone away... At the Kz Rally not all but most of the heavy Kz 5th wheels all have MorRyde pin boz's an out of the two that didn't one was having a MorRyde Pin box put on after the rally  Safe Travels Chuck & Hildi in Western Montana headed for the barn |
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Post by capemayal on Aug 25, 2017 8:14:00 GMT -5
I've had the all types of pin boxes with varying degrees of success. But, I think the biggest improvement was adding air bags to keep the trailer and truck combination level with each other. It took a little bit of fine tuning, but got it just right after a couple of trips. The only other thing that helped on one of my previous trucks was an air hitch.
Al
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Post by jetzen on Aug 25, 2017 14:40:28 GMT -5
milpol4523 We had a Trail-air brand new when we bought our G384FLT, I told them right away to take off the Trailair an put on the MorRyde 18k Pin box. The Trailair flexes up and down but not front to back, while the MorRyde flexes front to back etc, the reduces the chucking about 95 or more percent ... While before while going over bumps an overpasses with our old trailer which had a Trailair we would be lifted of the seat, not with the MorRyde pin box now on a 5th wheel that is 3k heavier that are old one ... Is there at time's some chucking, yes, but as I said 90 percent if not more has gone away... At the Kz Rally not all but most of the heavy Kz 5th wheels all have MorRyde pin boz's an out of the two that didn't one was having a MorRyde Pin box put on after the rally Safe Travels Chuck & Hildi in Western Montana headed for the barn Don't know what 5th wheels you where looking at Chuck but at the rally yours was the only one with a MORryde pin box on it. One person was was having his replaced after the rally. With a Rotoflex pin box which is what is standard on the Durango Gold line it in fact does move up and down and back and forth and is made to control chucking. Lippert also is the only pin box manufacturer that will keep the Lippert frame warranty intact. All others will void the warranty, you were told that at the rally by the Lippert reps.
Don't want to cause an argument but according to both Morryde and Lippert the MORryde pin box and the Lippert Rotoflex pin box are on a par. The Lippert Trailair only controls up and down movement and the Lippert Flexair controls up and down and back and forth and is an upgrade to the Rotoflex and is an option on the Durango Gold. I am also told that the pin boxes that have air bags like the Lippert Trailair and Flexair and Reese 5th Airborn do not work very well in conjunction with a tow vehicle that has a rear suspension supplemented with air bags. |
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Post by jetzen on Aug 25, 2017 22:10:19 GMT -5
Trailair Flex Air or MOR/RYDE 5th wheel pin box I'm not new to Rving or hauling 5th wheel travel trailers. the new unit is a toyhauler 37'8" long. 8550 dry weight the existing pin box is a limpert lipp1621 rated GVRW for 15500lbs. I've seen a lot of units equipped with both. etrailer recommends "The Flex Air pin box part # LC328492 would be what I recommend. It has cushioned vertically and horizontally which will greatly reduce the chucking. This has an 18k capacity as well so it would be more than strong enough." Advantages - disadvantages on both are sought before purchase. We are planning on owning this unit for the next 5 yrs. maybe longer so when hauling more and more closer to retirement i am getting tired of the poor overpass transitions where transport truck tire marks have covered the pavement giving us advance warnings of the highway to ditch to highway like surfaces. Thanks in advance You did not mention what kind /model toy hauler you have, don't know that it really makes a difference, but here is my schpeel. The trailer suspension and pin box go hand in hand, if you are planning on changing the pin box plan on changing the equalizer on the suspension. I would go with the Lippert Rotoflex 18k pin box and the Equaflex spring equalizer with wet bolt shackles. That should be your least expensive way out, even though it is a fine system you will gain nothing by going with the MORryde system (pin box & equalizer) unless you like a lighter wallet. I would go with the Lippert Flexair and Equaflex spring equalizer and wets bolt shackles only if your tow vehicle is without an air bag rear suspension. This system will cost you about the same as the MORryde system. As I stated earlier they All will handle the chucking issue, NONE will eliminate it. JMHO. |
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Post by Chuck on Aug 26, 2017 11:05:02 GMT -5
jetzen I was not told anything by any Lippert reps at the Kz rally, as you well know they were all around my trailer an never said a word about warranty problems ... I ask the dealer when buying the trailer, would changing pin boxes void my warranty, they said it would not, if I had even a hit that it would I would not have changed such ... I still have the trail air behind my tractor shop an could without a problem place it back on the trailer but again I am very happy with my MorRyde pin box.,, I agree that no matter what type of pin box you have it will not eliminate all chucking, I only know that with the old 5th wheel with a trail Air i had way more chucking than with the MorRyde ... I also like jetzen stated i would change out my a spring equalizer an wet bolts which in the future I will have the wet bolts put in with brass bushings Chuck |
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Post by jetzen on Aug 26, 2017 18:59:53 GMT -5
jetzen I was not told anything by any Lippert reps at the Kz rally, as you well know they were all around my trailer an never said a word about warranty problems ... I ask the dealer when buying the trailer, would changing pin boxes void my warranty, they said it would not, if I had even a hit that it would I would not have changed such ... Chuck Chuck,
when we were all at the KZ factory right after lunch when the Lippert reps were going over the Ground control system and how the frames were set up I asked the question about the difference between the different pin boxes available and the rep explained the relationship between the pin box and the equalizers and they should be installed as matching components. I then asked about the MORryde pin box and they said that the MORryde pin box was the equivalent to the Lippert Rotoflex except the Rotoflex would not void the Lippert frame warranty.
You must have been bust with something else when the went over that. And we all know that the dealer will tell you anything to make a sale.
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Post by Chuck on Aug 27, 2017 11:40:00 GMT -5
I agree that a dealer will tell you anything, but again I did not hear them state such at the Kz factory, might have been distracted by something the DW wanted .... I was pretty sure that George an his DW had a MorRyde on their 5th wheel when looking, I know they were talking with the rep about such, but I could have been wrong again Ugh ... At the RV show all the Montana's had MorRyde pin boxes on them I did look under the trailer but don not remember if they had the ground control system on them, will look when I am at the dealer since they sell Montana's Looking at my Trailair yesterday i see when the up an down part is but unlike the MorRyde I do not see where it has the rubber bumpers that go back an forth to stop the back an fourth chucking, I'm sure it may have it but I can see such Chuck |
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Post by ronc on Aug 31, 2017 9:31:29 GMT -5
This thread has mixed several pin boxes and kinda muddied up the water. Lippert makes 4 pin boxes. 1. Standard Pin Box ... this one is basically a rigid pin box with no cushioning at all. 2. Trailair RotoFlex ... this one is standard on the Durango Gold and has a thick rubber cushion that is designed to reduce chucking (it is functionally similar to the morRyde pin box). 3. The Trailair AirRide ... this one has an air bag and a shock absorber, which provides cushioning for up and down motion. 4. The Trailair FlexAir is a combination of the RotoFlex and AirRide using both the rubber cushion of the Rotoflex and the Air Bag and shock absorber of the Trailair AirRide. This final hitch provides for both relief from chucking and vertical softening of the bumps and blows that the road is giving to your trailer's frame and pin box area. Here is a YouTube video on this very subject: youtu.be/TIPa65ZUO6o |
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Post by ronc on Sept 3, 2017 10:52:02 GMT -5
I've had the all types of pin boxes with varying degrees of success. But, I think the biggest improvement was adding air bags to keep the trailer and truck combination level with each other. It took a little bit of fine tuning, but got it just right after a couple of trips. The only other thing that helped on one of my previous trucks was an air hitch. Al Additional clarification (I hope) ... while the topic is pin boxes, I believe Al is referring to adding air bags to his truck's rear suspension. I did this also, which was necessary to get the truck and trailer to ride level. Not really related to the pin box discussion, but good info nonetheless. Ron |
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Post by capemayal on Sept 3, 2017 12:15:04 GMT -5
Yes, the topic is pin boxes.
I have the lippert, but I did add air bags. A level ride can vastly improve the overall experience.
I've had Trailer Saver in the past. I liked it, and would do again except for the price.
But, IMHO,no matter what you do, if you're trying to get a really, really smooth ride - forget it.
You can minimize an uncomfortable ride but not eliminate it. Slowing down can be a big help. Looking ahead, instead of down, can help eliminate it.
Again, you can not get a 100% close ride, maybe 75% to 80%
Al
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Post by milpol4523 on Sept 6, 2017 9:14:38 GMT -5
the trailer is a 2018 KZ 331TH12
truck is a Ford Ecoboost with max tow. 6.6 box
AirLift air bags installed.
ordered the Flexair Trail air with the 2100 pin box capacity long jaw after talking with Lippert and etrailer.
we always look for spots where transports have left rubber on the road (overpass transitions or bad highway building) anticipate the ride to be a lot smoother but not like glass.
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Post by capemayal on Sept 6, 2017 9:25:15 GMT -5
I don't think you said what model your truck is. But, you said a 6.6 box.
Are you using a slider? That might contribute to the chucking. Having never had a short bed or slider, I don't know if I'm right on that.
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Post by Chuck on Sept 6, 2017 10:13:22 GMT -5
I had the Trailair RotoFlex an changed to the MorRyde pin box, but driving semi for a number of years as a team driver you always looked to give your team buddy a smooth ride so he could sleep. Thus you looked out for the pot holes, bumpy bridges an wash board roads. if you ever see a semi using the left lane for a number of miles it's because he or she is trying to give that second driver a smoother ride so he or she can sleep. one has to remember that team trucks run 24 hours a day an only stop to change drivers, fuel an eat an most times that's done all at the same time:) So saying this yes no matter what pin box you have there will be some chucking but looking out for the bumps in the road an do quick starts or mash really hard on the gas helps prevent such ... Safe travels an watch those bumps Chuck |
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