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Old 09-17-2018, 05:10 PM   #1
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Austin , Texas
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1988 325 MH tag axle and more

Trying to find a local service to replace the air suspension on the drive axle and replace the dogbone and do a bit of welding on the tag axle in Austin TX.


Just took the MH to Atlas Automotive and even though their web site says they do air bag suspension work, they told me no we don't do that. They also said they could replace the dogbone but I would have to supply it and they do not do welding. So they are only doing front end alignment.



Any ideas on where to get a dogbone replacement, get someone to replace the air bag suspension and do the welding in Austin TX area?
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Old 09-17-2018, 05:38 PM   #2
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1987 34.5' Airstream 345
Menomonee Falls , Wisconsin
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Hey,
I did a post on replacing the airbags on my 325. Go check it out. It was super easy. I wish I were in Austin, I'd come over and do it with you. The part that keeps a shop away from the job is the unknown factor. It is really hard to get to the top bolts of the bags from the bottom of the coach. Going thru the top floor is way easier.
The tag axle I can't help you . I know you can buy just the axle without the brakes or drums. I think it's about 625.00 as opposed to 3000 from inland RV. I'm not sure you can weld on the axle , because you'll melt the rubber that is on the inside of the axle. Sorry, not to helpful, I'm afraid. Good luck. DJ
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Old 09-17-2018, 06:32 PM   #3
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Air bag replacement

Thanks DJ, but where is the link to your post replacing the airbags?
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Old 09-19-2018, 06:08 AM   #4
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1987 34.5' Airstream 345
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Hey,
You got to go back a ways. Keep scrolling, you'll find it. I did two posts on the airbag. Replacement. It was about a year ago. I replaced the air fittings too. I posted part numbers and mfger. DJ
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Old 09-19-2018, 06:24 AM   #5
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I would ask Peter Hausmann for advice
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Old 09-19-2018, 06:35 AM   #6
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1987 34.5' Airstream 345
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Hey,
Go to the little search box. Type in airbag replacement I posted on May 11 2017. It's not in the thread here but is is on that page, you'll get when you search. DJ
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Old 09-19-2018, 05:06 PM   #7
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http://www.airforums.com/forums/f156...nt-166708.html


And on a side note, that's my birthday on the day you posted.
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Old 09-19-2018, 05:21 PM   #8
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yea

Quote:
Originally Posted by Boom Sounds View Post
I would ask Peter Hausmann for advice

Peter is the one who told me that I need to do these things, no mention about melting the interior rubber of the tag axle at least that I remember.



I have been dealing with so many unexpected problems over the last few months after a very good friend of mine stop using the 325 as a home while her farm house was being redone. I've now put close to 3K just to keep it running well and fix a variety of other small issues. These have continued over the last few days, still sitting in East Austin close to a auto shop with RV capability waiting for front end alignment so I can pass Texas state inspection.



Still sitting there as the new cable connecting the transmission and shiftier somehow went bad and the MH could not be moved out of drive.



Perhaps in a day or two it will be resolved and I can finally get it passed state inspection and back for sale. Meanwhile the shop I have it at was tagged the night before, and suggested I move it. I'm counting on a A/S being too cool to tag.
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Old 09-19-2018, 05:31 PM   #9
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1987 34.5' Airstream 345
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Well,
Happy birthday belated of course.
I was thinking, you could drill a 5 inch round hole. The air bag bolt that is hard to get at, is the outside one. I had more trouble getting the air lines off than the bolts. But I got big hands and I'm 6 foot eight. That's a tight squeeze in that hallway. I needed the extra space. I think if you got the bags in, a good shop may look at your tag axle. No hidden surprises . I'm still dabbling with the idea of putting a straight axle in there. I'd make it full air ride then. They make 5000 pd straight axles for trailors. If the bearings are the same and the spindle length is compatible, I may look into it further. My tag is fine, so it's just a pondering thing right now.
The post is 325 rear airbag replacement let me know how it goes. DJ
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Old 10-08-2018, 05:09 PM   #10
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Too Cool to tag?

Apparently, my A/S MH was too cool to tag, got out with zero issues other than a huge expense in front end expensive rebuild. New brake calipers, Master brake cylinder, lower ball joints, driver side bell crank assembly, coil springs, and finally front end alignment.



Next up, state certification, back axles fixes - both balloon suspension, and crack in tag axel. Dog bone replacement - seems impossible to find - and finally generator rebuild and cab A/C fix.



That seems all for now, who knows what may fail next.



I've come a long way with this and have put a lot of money into it, still more to go.


Peter Hausmann, any ideas?
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Old 10-11-2018, 07:05 PM   #11
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1987 34.5' Airstream 345
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Hey,
Inland RV has the whole axle assembly for 3500. The only thing I can see that's any differant than a torsion axle for say a boat trailor, is the lack of a shock mount. We got pretty big tires, with a lot of mass weight. Seems to me a guy could mount one of those 5000 pd axle, and fab some sort of shock mount.
Don't know, just throwing out a suggestion.
What's the matter with the dog bone. Are the bushings gone in it?. I'm sure if that's the case, you could find a machine shop, that could re bush it.
I haven't taken a really close look at that part of the suspension, to give any really good advice. Glad to see you got it out with all its parts and glass in tact.
Let me know what's the issues with the dog bone, ok. DJ
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Old 10-11-2018, 08:36 PM   #12
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Try these guys for the dog bone and bushings. https://superide1.com/Parts/800%20pa...39-updated.pdf
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Old 10-14-2018, 03:17 PM   #13
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I really don't know whats exactly wrong with the dogbone, Peter H just told me it needed to be replaced, I think he said it was worn in such a way that it may have been keeping the height of the back suspension from being correct. Prior to that I only thought of a dogbone as a treat for dogs.
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Old 10-14-2018, 04:17 PM   #14
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1987 34.5' Airstream 345
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Hey,
The Dogbone is a panard bar. It keeps the rear axle centered. Because the rear of the springs are cut off to adapt the air bag suspension, you got to have some way to keep the rear axle from slopping side to side, but also allow the axle to move up and down, thus a very small panard bar, the bushings wear out, and then the thing kinda allows the axle to wander side to side, and your ride height will be affected because of the exsess amount of movement within the dog one. It's not much, but enough cause a wander and ride height issue. It may clunk a bit, if it gets really worn out. Check that website listed. You'll get a pretty good idea of what is is and does. It can't be that hard to do yourself. Good luck DJ
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