axle help - Page 2 - Fiberglass RV


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Old 09-19-2018, 11:26 PM   #15
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Andrew, that's not a close fit....it's dang tight . I have to agree that a 4 YO axle should still be fine. Did the shops check to see if there was still good rubber and reflex in the axle? If so, I can see no other reason for the fit to be so close to the wheel wells than the wrong up/down angle was installed at the factory. I have no idea what the factory specs were and can't decipher your axle tag. May be wrong and that sure wouldn't be the first time . Maybe another member with the same rig and good tire clearance can compare their tag to yours.
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Old 09-20-2018, 03:23 AM   #16
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To OPs:

I replaced my worn out 40 year old torsion axle on my Trillium 4500 with a Dexter #9 torsion axle 2 years ago. I ordered it with 2200# capacity (yes the capacity can be specified, adjusted at the factory). Also I ordered brakes pre-installed.

As far as which angle to specify on the order form, you must determine this (or have the shop help you determine) using the rule of thumb that there should be a fist width of space between top of tire and wheel well when the camper is resting on the ground.

-John
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Old 09-20-2018, 03:28 AM   #17
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2200 lb is highest capacity that can be specified for the Dexter #9 torsion axle. If you want to go higher capacity you need to order a Dexter #10 torsion axle. I would not go higher than 2500 lb with a Trillium 1500 as the resulting ride will be too stiff resulting in too much shock and vibration. (For reference, my Trillium 4500 weighs 1480 lbs dry and empty.)
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Old 09-20-2018, 06:52 AM   #18
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Andrew, I cannot make out the label in your picture pertaining to the brand/model of your axle but given the fact that it is fairly new, I would be looking to see if it was just improperly set up initially and not fatigued and sagging. My boat trailer has torsion axles and the shaft coming out of the axle is splined. The lever that supports the spindle is splined also with a clamp bolt. This allows the arm to be slid off the splined shaft, rotated to the desired angle and slid back on the splined shaft that gives the proper ride height. My boat trailer axles are from 2004, have had the boat on it continually and is not sagging. I hope you can find someone to help you rectify your problem that doesn't take advantage. With the part numbers available to you on that tag, you can do some research online and figure out just what you have and how to set it up properly. Good luck.
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Old 09-20-2018, 07:14 AM   #19
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axle help

Flexi-Ride makes such a splined, adjustable torsion axle. It's an alternative to a fixed angle axle from Dexter or Lippert. It's more expensive, and the axle arms are shorter, so the mounting points will have to be moved slightly. Folks who've installed one give it high marks for quality.

Regarding the axle rating... The tag indicates you have a 2500 pound axle. That means it is a #10 de-rated to 2500 pounds. That seems right for a 15' trailer, especially if it has a bathroom and other upgrades.

And while you're at it... We've already heard of one frame failure on a Trillium Sidekick. This'd be a good time to have the shop check carefully for any signs of fatigue or cracks. The vulnerable place is where the frame curves upward as it comes out at the front of the cabin.
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Old 09-20-2018, 07:39 AM   #20
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Thanks everyone for the valuable advice! The guys at the shop were going to test the rubber reflex on the current axle today. I will definitely mention the possibility of improper installation of the axle as well as have the shop take a look at the frame and update the group when I hear back.

-Andrew
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Old 09-20-2018, 09:48 AM   #21
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Just a suggestion, but when they pull the axle to replace it, I'd check to see if they wouldn't mind welding on a couple of 3' sections of square channel tubing under the existing main frame rails before they mount the new axle, (which most probably are 1 1/2" wide,) to gain a little more ground clearance and room inside the wheel wells. Kind of a "lift kit." They may even be able to install a couple of rectangular channels like 1 1/2" X 3" to get it up higher yet. You would also benefit from the ability to go with larger wheels as well. Just a thought...
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Old 09-20-2018, 10:25 AM   #22
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Quote:
Originally Posted by Casita Greg View Post
Just a suggestion, but when they pull the axle to replace it, I'd check to see if they wouldn't mind welding on a couple of 3' sections of square channel tubing under the existing main frame rails before they mount the new axle, (which most probably are 1 1/2" wide,) to gain a little more ground clearance and room inside the wheel wells. Kind of a "lift kit." They may even be able to install a couple of rectangular channels like 1 1/2" X 3" to get it up higher yet. You would also benefit from the ability to go with larger wheels as well. Just a thought...

Another advantage to this suggestion is that if they drill holes and weld nuts inside the tube, then the axle can be bolted on instead of welded. That way, 40 years from now, it will be much easier to change the axle. This is what Trillium / Outback did for me, but instead of raising the trailer, they used an up angle on the swing arms to keep it the same height.

Another way of getting more ground clearance is to order the swing arms at a larger down angle.
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Old 09-26-2018, 11:31 AM   #23
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Ditto my Trillium 4500

Quote:
Originally Posted by halfhitch View Post
Andrew, I cannot make out the label in your picture pertaining to the brand/model of your axle but given the fact that it is fairly new, I would be looking to see if it was just improperly set up initially and not fatigued and sagging. My boat trailer has torsion axles and the shaft coming out of the axle is splined. The lever that supports the spindle is splined also with a clamp bolt. This allows the arm to be slid off the splined shaft, rotated to the desired angle and slid back on the splined shaft that gives the proper ride height. My boat trailer axles are from 2004, have had the boat on it continually and is not sagging. I hope you can find someone to help you rectify your problem that doesn't take advantage. With the part numbers available to you on that tag, you can do some research online and figure out just what you have and how to set it up properly. Good luck.
I replaced my 40 year old axle with a new torsion unit. I Specified the angle that seemed right, and it came set up on splines. This should be easily adjustable.

A shop that knows what they are doing should NOT be expecting customer to bring in their own parts!



CJW
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Old 09-28-2018, 09:54 AM   #24
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I bought a 16' 89 casita in 2005 with the forward facing swing arm. I bought a high rise from dexter with rear facing arms and some wire spoke wheels from an old pontiac. I had to fab in additional framing to accommodate the reverse swing arm. The axle was delivered to a dealer 30 miles away that I had to put in the back of the station wagon. They are relatively cheap. Now I have welded angle clips that hold the axle with tw2 bolts each side. Next axle change will be easy......
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Old 10-03-2018, 02:06 PM   #25
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Thank you for all the help with troubleshooting and ordering our new Dexter torsion axle for our 2014 trillium. Im not sure what angle to go with. Currently its at a 0 angle but goes up with the load to a +10. we need more clearance in the wheel well, so would you recommend a -10 or a -22.5 (these are set angles from dexter). im leaning toward a -22.5.
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Old 10-03-2018, 02:31 PM   #26
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Judging from your photo and looking at the Dexter Torflex application guide, I would say -22.5 degrees. That gives you 2.25" more space than you would get with a zero degree axle according to the application guide.

However it really depends on whether you are ordering:

- Dexter #9 or #10
- low or high profile bracket

Also, I would recommend installing the axle with a Dexter (or custom) bolt on bracket instead of welding. Then the axle can be easily replaced or a spacer can be added to raise the trailer.

EDIT: I also recommend ordering with brakes (much cheaper than adding later), or at least order with brake plates.
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Old 10-03-2018, 03:13 PM   #27
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thanks John,
we were going to go with the #9 low profile bracket. but your estimate on inches really helps.
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Old 10-03-2018, 04:00 PM   #28
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Katie, I got my estimates on page 12 of the attached link (Dexter light duty torsion axle catalog):

https://www.dexteraxle.com/docs/defa...).pdf?sfvrsn=2
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