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Old 04-03-2007, 01:15 PM   #1
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1994 30' Excella
alexandria , Kentucky
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weight rating and down angle

The trailer I have has a GVWR of 4200 lbs.
Tandem axle

For axle replacement what weight of axle do you recommend?


Do all Airstreams have the 22.5 degree down angle?
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Old 04-03-2007, 01:19 PM   #2
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1993 21' Sovereign
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No more than 2500 pounds per axle, and 22.5 is what they came with from the factory. If you get Henschens via Inland RV, Andy can spec a higher beginning angle for more ground clearance with your J20.
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Old 04-03-2007, 01:32 PM   #3
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1994 30' Excella
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Actually I am going with Dexter's. It is a price and availability issue. One of my good friends is an "Axle Surgeon" (franchise) and works on all kinds of semi-truck and various trailer suspensions for a living - hence the price break on the axles.
I just wanted to confirm if the 2500 lb axles are too stiff or should I jump back to 2300.
Dexter's come in a standard down angle of 10, 22.5 and 45. I usually go back with stock when I fix things unless an actual improvement can be made over the original.
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Old 04-03-2007, 02:25 PM   #4
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1993 21' Sovereign
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45 is what would net you the increase in ground clearance, and you can go 10% over stock as far as axle capacity. If 2300 is stock, you can add 230 pounds to it, or 2530 pounds per axle. 30 pounds is a little nitpicky, so 2500 would be about right.
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Old 04-03-2007, 04:42 PM   #5
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Got an additional 400 pounds scoped out already?

Quote:
Originally Posted by crispyboy
... I just wanted to confirm if the 2500 lb axles are too stiff or should I jump back to 2300. ...
I upgraded my axles to carry an additional 400 pounds total and was very disappointed with the results of the 60 mile test drive of the new axles with an empty Airstream. I expected to open my Overlander's door at the end of the shake-down cruise and find everything in perfect order. Instead I found the same signs of everything rattling around that drove me to purchase new OEM axles.

I was pissed.

But, during a rest stop during our first fully loaded trip, everything was found to be riding extremely well with very few signs of road vibration. I surmize that the deadweight of clothes & food for a family of four for a week loaded the new axles sufficiently for them to work in their sweet-range.

There's more detail about this under "new axles" at my Overlander's web site.

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