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Old 04-16-2009, 08:40 PM   #1
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4200# Dexters for 31' Sovereign

Too much? There's pair of 4200# dexters w/brakes for sale for $750, sounds like a good deal, but 4200# is probably too much right?
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Old 04-16-2009, 09:17 PM   #2
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We got 3500 pound axles for our '74 Sovereign. Original was 3200. and 3500 are a touch under 10% over OEM. I'm not sure what Dexter's ratings are, but something close to 3500 would be good (somewhere between 3200-3700#) depending on how much "stuff" you plan on carrying.
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Old 04-17-2009, 12:20 AM   #3
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Hmmm....I don't plan on carrying a bunch of stuff, definitely not 1400 pounds of stuff anyway. Do you think the 4200# mark is way over the top? Would it ride too rough? What do you think the draw-backs might be?
Thanks Terry
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Old 04-17-2009, 12:42 AM   #4
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There are two issues I can think of off the bat. The first is the 4200 pound axle will have a larger tube, needing a larger slot cut in the frame for the tube. Not a problem if you're handy with a torch, but if you're lying under the trailer trying to cut the notch out with a hacksaw, it would really suck. The 4200 would be a little hard on the trailer, especially if you're not going to load it that much.
Under normal use, our trailer weighs around 6000 pounds loaded, but when we moved to California it weighed in at almost 7700 pounds, nearly at maximum for the axles, factoring 14% of that was tongue weight.
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Old 04-17-2009, 07:56 AM   #5
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I don't know that a 4200# #11 would have any different dimensions that a 3500# #11. It's the rubber inside the axle that determines it's rating. But everything I have read says too stiff an axle can shake an Airstream apart.
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Old 04-17-2009, 12:09 PM   #6
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....everything I have read says too stiff an axle can shake an Airstream apart.
That's what I suspected. Just thought I'd put the idea out for some feedback.
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Old 04-17-2009, 01:00 PM   #7
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Yep, I've been watching this thread, too, and my gut feeling is that too stiff an axle might not be doing the Airstream any favors. When I order ours -- it's going to be a few more weeks -- I figure I'll get as close as possible to the 3200s currently on the rig (for the last 4+ decades), though I also hope that Inland Andy chimes in here to confirm suspicions!


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Old 04-17-2009, 01:56 PM   #8
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Yep, I've been watching this thread, too, and my gut feeling is that too stiff an axle might not be doing the Airstream any favors. When I order ours -- it's going to be a few more weeks -- I figure I'll get as close as possible to the 3200s currently on the rig (for the last 4+ decades), though I also hope that Inland Andy chimes in here to confirm suspicions!


Lynn
Lynn.

Airstream had a habit of providing axles that gave the trailer a super soft ride.

The problem with that is the payload was limited.

Your original 3200 pound axles can be increased to 3500 pounds, which is under a10 percent increase. That will still provide a soft ride, with some additional payload capacity available.

Generally speaking, torsion axles rated under 3999 pounds, have a tube size of 2 5/8 inches.

When the rating becomes 4000 pounds and up to 5000 pounds, the tube size increases to 3 inches.

Therefore if someone that has an older Airstream that has 3000, 3200, or 3500 pound axles, wishes to kick it up to 4000 pounds, which under some conditions is OK, then the square tube cut out size in the axle mounting plate, must be increased. That is not a major problem, since the alignment of the axle is dependent on the mounting bolt holes only.

Andy
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Old 04-17-2009, 03:08 PM   #9
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Super duper! That's exactly the info I wanted to know, Andy!


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