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02-27-2006, 02:59 PM
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#1
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4 Rivet Member
2012 31' Classic
1999 36' Land Yacht Widebody
Andalusia
, Alabama
Join Date: Dec 2005
Posts: 476
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Broken rear upper shock mount
I just found that I have a right rear upper shock mount stud broken.
Before our Florida trip, I had a new set of Bilsteins installed. The shock is not damaged, but I need to know how everyone is fixing this problem.
The stud failed, and the web on the frame looks ok.
Thanks, Rob
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02-27-2006, 04:01 PM
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#2
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Retired.
Currently Looking...
.
, At Large
Join Date: Jun 2003
Posts: 21,276
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MotorMite makes a replacement shock stud in their Help! line. You will need to drill a hole where the old stud was mounted, insert the replacement, and tighten the nut on the back of it. I make it sound a little easier than it is, but it isn't tough, maybe an hour and a half job, including R&R that tire/wheel.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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02-27-2006, 04:18 PM
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#3
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Rivet Master
1984 31' Airstream310
Dunsmuir
, California
Join Date: May 2004
Posts: 1,336
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When I was shopping for Bilsteins, I came across a reference that said you need to weld a new shock mount on the P30 chassis to fit Bilstein's on the rear. No such requirement for the fronts.
Did you do that? If not, I wonder if that is somehow the cause of your problem.
__________________
If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama
1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
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02-27-2006, 04:49 PM
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#4
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4 Rivet Member
2012 31' Classic
1999 36' Land Yacht Widebody
Andalusia
, Alabama
Join Date: Dec 2005
Posts: 476
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The guys that installed the shocks just bolted them on. No changes were made to the mounts.
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02-27-2006, 05:00 PM
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#5
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Rivet Master
1973 23' Safari
1977 23' Safari
2018 25' Flying Cloud
Palmer Lake
, Colorado
Join Date: Oct 2005
Posts: 4,092
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I'm getting a new axle from Axis, should arrive in two weeks. One thing that puzzled me was that they don't have a suitable shock stud. I couldn't tell whether that was because they were trying to match the original Airstream stud or what. They are putting on the bracket for a horizontal shock and I have a pair of 555003 (hmm, is that right?--close) shocks in a box waiting for the axle change. Any insight on this would be greatly appreciated:
1. If I find the right size bolt, can you just put the bolt through the bracket hole and the shock, then tighten the nut? Would that wobble too much and does that mean the stud/bolt has to be welded?
2. What is the right size and does it have to be a bolt/stud with a long threadless shank?
thanks, Roger
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02-27-2006, 05:49 PM
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#6
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Rivet Master
1984 31' Airstream310
Dunsmuir
, California
Join Date: May 2004
Posts: 1,336
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Rob,
Here's an old thread about Bilstein's. You'll see that I'm not the only one who noticed that you need modified mounts for the rear.
Good luck.
Guy
__________________
If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama
1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
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02-27-2006, 06:02 PM
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#7
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Rivet Master
, Minnesota
Join Date: Aug 2003
Posts: 7,721
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Quote:
Originally Posted by 3isnotenough
They are putting on the bracket for a horizontal shock and I have a pair of 555003 (hmm, is that right?--close) shocks in a box waiting for the axle change. . . .
thanks, Roger
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Roger,
Those shocks have a 5/8" x 1 5/16" loop end. Monroe makes a 'Trailer retrofit' kit which has the correct studs and parts to do this installation.
Here is the website:
http://www.monroeheavyduty.com/monro...e=retrofit_kit
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02-27-2006, 08:06 PM
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#8
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2 Rivet Member
1995 36' Classic 36
Ottawa
, Ontario
Join Date: Jun 2005
Posts: 46
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Rob, the broken upper mount is a common problem on the P30 chassis, and is made even more likely with Bilsteins. I had a broken one on my 345 when I bought it last year. While clearance is a nuisance, I drilled out the remains of the stud, drilled through the chassis bracket with a 1/2 inch drill, enlarged the hole to 5/8inch with a die grinder (didn't have a big enough drill or drill bit) and then replaced the stud with a good quality bolt and a couple of washers to space the shock away from the bracket. Tightening it up was potentially a nuisance as the nut is on the inside of the bracket, but if need be I was prepared to bend a wrench to shape.
It is not the most pleasant job to tackle as I found I could not adequately use the drill from the wheel side and had to lie underneath the rig (suitably blocked and safety standed - you do not want that 10,000 pound rear end to fall on you !). If you can access a ready made kit to replace the stud, so much the better, but I found that the 5/8 bolt soution was quite adequate and have travelled several thousand miles since the repair.
Good luck, whatever route you go!
John
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