Burro Axle Downangle - Fiberglass RV

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Old 03-26-2015, 03:05 PM   #1
Name: Samuel
Trailer: Burro
New York
Posts: 45
Burro Axle Downangle

Hello... I'm committed to replacing the axle on my '79 Burro and trying to decide on downangle. Some questions:
- I'm interested in possibly going to slightly larger tires (15"). It looks like there is no wheel well problem here. Any advice here?
- It seems like I would benefit from the increased ride height offered by the 22 degree down option because of higher hitch height and the preference to having a slightly forward leaning trailer rather than back. On the other hand, maybe the increased height may add to instability. I should note that my tow vehicle has pretty good ground clearance. Any thoughts here?
- I'm worried that maybe the 22 degree down angle might 'look weird' on the trailer with wheels too far out of their wells, violating the original spirit of the trailer. Thoughts?
- The step up. Is this a problem? I have no issues with using a step on the ground but will this get old real quick, leaving me longing for the 10 degree?
- What is the actual difference in inches between the two?
- Does 22 vs 10 have a difference in the quality of the ride for the trailer and its non living occupants?
- What is the original spec?
- I took measurements. Anyone want to share theirs so I can feel more or less confident in mine?
- Am I overthinking this? Sorry for the super long text above, but I wanted to do some crowdsourcing on this.

'79 Burro, Rochester NY

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Old 03-26-2015, 03:19 PM   #2
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Ian G.'s Avatar
Name: Ian
Trailer: 1974 Boler 1300 - 2014 Escape 19'
Posts: 1,356
I have consolidated all the ground clearance measurements on a Dexter #9 axle for a Boler based on 175st tires with a diameter of 24" This may give you a good idea for your Burro
Proud Canadian- Boler Axle

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Old 03-26-2015, 05:55 PM   #3
Name: Samuel
Trailer: Burro
New York
Posts: 45
I forgot to note: I plan to convert this to a trailing arm (it's leading now). This is easier as the Burro has a single level floor. I also was planning to leave the old axle in place, cutting the arms off flush with the frame sides as not to lose origins structural benefits of the axle in that location. Because it's near the wheels it shouldn't affect ground clearance.

'79 Burro, Rochester NY
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Old 03-26-2015, 07:37 PM   #4
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widgetwizard's Avatar
Name: Jim
Trailer: Bigfoot
Posts: 251
I will take the easy question.
the difference betwen a 10 deg down and a 22.5 deg down on a #9 is about 1.3 inches


Retired from Orbital Machine Works.
Where is Jim now? Here.
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