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Old 04-06-2022, 10:40 AM   #21
33 foot Spartan Royal Man
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Guelph , ontario
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33 foot Spartan, dual axle leaf springs, no shocks.
Has worked well. You can see some things vibrate around inside..

I see the dual axle leaf setup with the link between as essentially independent or at least semi-..
I may go with something like this;
I've seen graphs showing transfer of 'shocks' through the setup and it looks good.. guessing the neoprene etc. is reacting more rapidly to some smaller impacts, like a lighter weight spring?
Anyways, both systems work, and we are rarely grounding axles so the height of axle isn't key like in an off-road vehicle..
Good luck.
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Old 04-06-2022, 10:57 AM   #22
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1961 22' Safari
Union , Oregon
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This is from my earlier post on spring/torsion axles. Thought it could be repeated here.

I have five trailers right now and I use them all. Each one has a different purpose. Four of the five have leaf springs and one has the rubber torsion axle. I prefer the "horse wagon crude leaf spring". My leaf spring trailers range from 21 to 63 years old. On one of those I had a broken leaf. A visual inspection caught this early. Easy fix and not expensive. Repair parts were locally available. On another I upgraded to a higher rated axle, but retained the leaf spring set-up that matched the weight of my trailer.

If all my trailers had torsion axles that lasted the 15 years I would have had to replace 13 axles so far.

A leaf spring suspension system can be maintained. A torsion system can be replaced.

The combination of leaf springs and either a straight axle or drop axle will give you any ride height needed for your desired use.

Are torsion axles better for an Airstream and the owner than leaf spring suspension? It is a matter of opinion. Here you have my experience on the matter.
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Old 04-06-2022, 11:13 AM   #23
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1957 22' Custom
San Diego , California
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Our single-axle Airstream predates rubber-torsion axles. The drop axle has leaf springs with rubber-sandwich bushings. Tires are inflated to 80 psi cold pressure before starting trips. The tire pressure monitors show that actual pressure rises to nearly 90 psi when driving for hours at the speed limit in 100F+ weather.
I can't comment on ride quality (haven't tried to ride back there) but we haven't had problems with anything shaking loose or coming apart or getting thrown around. On our last trip I thought one of the screw-base light bulbs had burned out, but it had only loosened in its socket, maybe from vibration.
A few years ago I replaced the apparently-original rubber-sandwich spring bushings, pivot bolts, shock absorbers, and shock absorber bushings with new ones due to concerns about their 60+ year age. As it turned out, I could have spared myself the exercise. The apparently-original ones seemed good enough for another 60+ years.
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Old 04-06-2022, 07:44 PM   #24
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Niagara on the Lake , Ontario
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I have two trailers with torsion axles and two with leaf springs. Only the airstream has shocks.
All four ride well, the leaf spring trailers are cargo trailers and they get bouncy when empty.
My 20’ enclosed car trailer with torsion axles rides about the same loaded as my airstream does.

Once I left a cup of coffee on the counter in the airstream and it didn’t tip over in an hour of driving.

Torsion axles and leaf springs accomplish the same things, just like the leaf springs on my tundra do the same job as the coil springs in my 4Runner.
1977 Safari Land Yacht
2005 Toyota Tundra SR5
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Old 04-07-2022, 04:55 PM   #25
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Knoxville , TN
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I've worked with commercial trucks for 30+ years and have seen dozens of different suspension set ups. What a I can tell you is that metal springs are great for heavy loads with no forgiveness. Rubber based systems tend to be smoother with less rebound issues. Air ride is the best for smooth but unfortunately they don't have them for RV trailers currently. For trailer leaf springs have a sweat spot for ride with a certain weight but zero effective rebound dampening where as rubber torsion axles have some rebound dampening inherent to the design. Both can have added benefit from shocks but most people aren't going to maintain them or even know when they fail. Which is one reason they tend to be left off.
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Old 04-07-2022, 07:13 PM   #26
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Just a comment. As SAMB mentioned, spring axles can be repaired, torsion axles need to be replaced. A catastrophic bearing failure will result in your trailer being out of commission for at least a month. Ask me how I know...

My SOB has dual torsion axles. No complaints about harsh ride.
2017 29' SOB, 2022 Platinum F-150 SCrew, ProPride
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Old 04-14-2022, 09:58 PM   #27
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Originally Posted by Ray Eklund View Post
Does any other Travel Trailer use Rubber Torsion Axles?

If Yes... which? If No... why not?
Many cargo trailers, virtually all gooseneck horse trailers and Living Quarters horse trailers........ Winnebago Micro Mini and Mini models, possibly others, Escape, most of your smaller "egg" trailers.

Originally Posted by SailorSam205 View Post
Just a comment. As SAMB mentioned, spring axles can be repaired, torsion axles need to be replaced. A catastrophic bearing failure will result in your trailer being out of commission for at least a month. Ask me how I know...

My SOB has dual torsion axles. No complaints about harsh ride.
The first time you have to replace a Torsion axle, be sure to specify the replaceable spindle option, then buy a spare spindle and carry it along with a set of bearings and a hub. On super long trips this would be worth the extra weight to have the parts ready to install.


'03 Ram 2500 CTD, 5.9L HO PacBrake six speed std cab long bed Leer top and 2008 BigfootRV 21RB trailer.. Previously, 2008 Thor Freedom Spirit 180, SOLD! 2007 Winnebago View 23H Motorhome, SOLD!
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Old 04-15-2022, 03:42 AM   #28
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Ray, I am reading this while wearing platform shoes... to keep MY Neanderthal knuckles from dragging on the ground.

Remember when 33 ft. Airstreams had 3 axles? Not all that long ago. Someone pointed out that at least one manufacturer said 3 axles were a huge no-no? Apparently because it made the middle tire flex in both directions simultaneously whenever the trailer was turning. An effect that was particularly bad when backing or parking and needing to make multiple short, tight turns. And I recall people noticing "OMG I have 3 3,000 lb. rated axles and a trailer that weighs almost 10,000 lbs. Empty!" So, obviously someone at the factory heard about this, had a Religious Defecation moment, and the twin axle 33 footer was born. Hope they have 2 6,000 lb. Axles. Trying to care, but have never wanted a trailer that big.

I've.been interested in Oliver trailers since they came out, and will wait with baited breath (gag - deliberate misspelling) for your ongoing comments and observations.

I still like the LOOKS of my Eddie Bauer - but re-sealing seams, running lights, awning arms, window frames and rivets is something that is NOT easy to do, and is virtually find someone trustworthy who will do it well - at any price. Perhaps I need to rent a cherry picker. I slid down the side of mine already, leaving permanent fingernail tracks that hide under polish... yet another hateful chore... and then there is treating the window gaskets with formula 301. I hope you find that the Oliver needs less maintenance.

So thank you for this fascinating thread, and keep on posting.

Paula, contemplating
Today is a gift, that's why they call it the present.
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Old 04-18-2022, 03:05 PM   #29
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2019 27' International
2014 25' International
2006 23' Safari SE
Boulder City , Nevada
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Oliver Elite II HAS Shocks... . I am shocked

There is a shock absorber for each leaf spring attached in the 2019 Oliver Elite II.

This is a corrections from: "The Oliver has Dexter Leaf Springs with 5 Leafs to the Spring Set. Between the Leaf Sprung Axles are some independent moving heavy duty hardware that acts like Independent Suspension with a Large Rubber 'dampner' as the shock absorber? No shocks."

Yep... they, the shocks. FOUR appeared over night, I am sure. We were out for a week, Off the Grid Boondocking at 7800 feet in New Mexico. Lows in the 12 to 15 degree F and upper 60's after Sunrise. Lots of bed covers and no complaints.

The Shocks had no adverse effect to the furnace operation. Good news?

Yet.... working on it.

(Dog water bowl froze solid, outside the trailer, three days. The fourth day... only surface ice. A bit better insulated than an Airstream, but a better delivery system, quiet and has a quirky thermostat setting like the 27 FBQ International and 25 the foot International.) Melted after Sunrise, low humidity, short sleeve days until Sunset... and ohhhh weeee. No humidity. No frost, I may add.

The Oliver Leaf Springs did not shake the interior cabinet doors apart, or any hardware. The seat cushions were on the floor. Weigh about one to two pounds... I could manage to pick them up, by myself of course, and put them where they belonged.

I DID NOT ask Nancy to try a ride... inside the Oliver, yet. I was thinking about it... but then again, figure we would do the interior cushion test. It failed. But was expected. She may have a place for me to visit, or go to, If I did ask.

This was a full week camping and further back into the mountains than a 27 foot Airstream, could manage. Although I could have, but we travel with only One Trailer at a time. Not like jewelry where multiple rings work out fine. No complaint there.

Nothing fell apart or missing. Nothing split, cracked, come loose or was discovered in a place that was not the original assembled location. I have had Airstream curved sink doors in places they were NOT ORIGINALLY ATTACHED... often. Fixed that with Piano Hinges and no more of that happening.

My opinion is rather worthless, but Leaf Springs I prefer. My F350 has stiff Leaf Springs, the rivet popper blamer's claim to be the source of that problem. Rides very well. Better than a School Bus, for sure. Better than Nancy riding inside the 25 foot International.... First hand account. Rivets are not 100%. Maybe closer to 97%, but usually failing in the worst possible places.

I may start a "Comparing SOB''s to our Airstreams" for comparisons to support everyone's opinion, that may also be wrong..., but what the Hell?

The Oliver II DOES NOT SUCK DUST LIKE AN AIRSTREAM. (My first Grrrrrr Airstream comment.) Although after 3 years tweaking the 2019 27FBQ International... the 'sucking dust' may have been taken care of. Lots of Gorilla Tape, cleaning surfaces for solid adhesion and using what little of a Human Bean Brain, left after three Airstreams.

We plan to go Airstream Dust Sucking shortly. Maybe wait for temperatures to moderate, but know of many dust sucking places in Wyoming to visit. I am confident, after a number of Gorilla Black wide and very side tape, applied throughout the fender wells and other areas of severe... dust sucking. Airstream are NOT Air tight. They sink in a lake... I suppose, too.

The 2019 Oliver is a keeper... like the 2019 27FBQ International. But... all I need is some excuse, like stubbing my toe on entering the steps into the Trailer... and that sucker is going to be listed For Sale.

If this does not inspire you to Do a SOB THREAD... it should. I am a Neanderthal and not a Politician or Selling Trailers.
Human Bean
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