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Old 06-22-2009, 07:17 AM   #1
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are these axles still usable ?

hi airstreamers !,

Our 1986 excella 32 has its original 4000 lbs axles , arms horizontal , maybe even angled up .. slightly .

Would you still use these on a 2000 mile trip, or can i delay the replacement of the axles for a year or more ?
( i don't want to look for popped rivets after the trip )

when the trailer is horizantal , the hitch sits at 18 inch from the ground and there is approx 3 inch rubber visible between the top of the rim and the bottom of the aluminium visible , trailer loaded

thanks !

Axel
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Old 06-22-2009, 07:36 AM   #2
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how to check them:
Dura Torque Axle
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Old 06-22-2009, 07:45 AM   #3
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They look OK to me. The problem axles seem to be more the early 70s.

If they are shot the the risk is damage from vibration over a long period of time, not sudden catastrophic failure. Besides the torsion arm position jack up the axles and make sure the wheels drop in the wheel well at least 2-3", staying in contact with the ground, before they come off the ground.
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Old 06-22-2009, 08:43 AM   #4
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the test result

Quote:
Originally Posted by richinny View Post
how to check them:
Dura Torque Axle

I just measured, the wheels drops 2.1 inch when jacked up, just before leaving the ground.

Axel
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Old 06-22-2009, 09:08 AM   #5
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Quote:
Originally Posted by AxelBruijnis View Post
I just measured, the wheels drops 2.1 inch when jacked up, just before leaving the ground.

Axel
"Another test is to jack up one side of the trailer. The tire or tires should drop at least 3 inches. If not, then the rubber rods have solidified. When the rods have solidified, the cushioning of the axle becomes nil, which causes the trailer to bottom out, when hitting bumps."

so, it seems they need replacing. at least they had some movement.
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Old 06-22-2009, 09:42 AM   #6
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Quote:
Originally Posted by AxelBruijnis View Post
hi airstreamers !,

Our 1986 excella 32 has its original 4000 lbs axles , arms horizontal , maybe even angled up .. slightly .

when the trailer is horizantal , the hitch sits at 18 inch from the ground and there is approx 3 inch rubber visible between the top of the rim and the bottom of the aluminium visible , trailer loaded

thanks !

Axel
Axel.

The off the production line ball height for your Airstream was 18 3/4 inches.

Make your trip and check the axles again when you return.

More information is available in an article that's in the Airstream Central web site.

Andy
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Old 06-22-2009, 11:30 AM   #7
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Quote:
Originally Posted by AxelBruijnis View Post
I just measured, the wheels drops 2.1 inch when jacked up, just before leaving the ground.

Axel
Here is what mine looked like before I replaced them. The rear axle is on a 4" ramp and the front axle is 1" off the ground. My trailer had about the same ride height as yours so I was in no hurry to replace the axles until the interior started showing problems from the rough ride - walls moving, brackets breaking...
After the axle replacement the 4" ramp is barely tall enough to get the other axle to clear the ground if the trailer is lightly loaded.
I would have skipped the axle swap if we didn't use our trailer on a monthly basis averaging +5,000 miles a year.
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