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Old 02-03-2013, 08:38 PM   #11
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Me too. Hard to believe I would be facing frame cracking with 2011.
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Old 02-03-2013, 08:45 PM   #12
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This has been a problem with the Lippert frames for quite some time. I almost didn't buy a Forest River because of this very issue. Several other manufactuers us Lippert as well. I am going to keep a close eye on mine.
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Old 02-03-2013, 08:55 PM   #13
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Yeah I use my stuff but respect it. I operate my truck and rv in their best interest always aware of what is detrimental. I guess lippert needs to look at their designs and engineering
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Old 02-03-2013, 09:02 PM   #14
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You mentioned the model number, but not the make. Have you been in contact with the manufacturer? There's a pretty good chance that they'll stand behind and pay for the reapirs as it's a 2011 camper.

I'm no structural engineer, but I look at those cracks located between the axles, it looks like failure due to flexing with the axles being the pivot. It almost seems that the I beam design was insufficient for the length and weight of the camper.

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Old 02-03-2013, 09:07 PM   #15
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Somewhere on the internet I saw Lipperts"fix" for this. It included some extra gussets ang fish plates in addition to welding the cracks up. Cracks that spider the way yours are can be troublesome to repair correctly.
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Old 02-03-2013, 09:13 PM   #16
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I would imagine they would "stop drill" the crack. Used in aviation skins and brass drum cymbals for years. Gusseting a few plates could'nt hurt either.
Inquiring minds wanna know this outcome.
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Old 02-03-2013, 09:25 PM   #17
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Spider cracking like show in the pictures is usally an indication that the metal is very fatiqued. The "stop drilling" will work but unless the area is ground free of pait and dye penatrant inspected, it is easy to miss one of the small cracks. From what I have read about the Lippert frames, this problem is not uncommon and I'm sure many have been repaired with success.
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Old 02-03-2013, 09:39 PM   #18
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Quote:
Originally Posted by rkswyo View Post
From what I have read about the Lippert frames, this problem is not uncommon and I'm sure many have been repaired with success.
I've seen lots of posts here and on RV.net in regards to Lippert frame stress cracking but in the pinbox area...haven't heard of cracking in the I beam between the axles.

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Old 02-03-2013, 09:49 PM   #19
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My rv is a stealth lx3122 made by forest river. It is a 5th wheel toy hauler and is 33 feet in length My wife and i love this rig and of course upset with this problem. I am extremely careful not to do u turns and to be as careful in all operations. We hoped that this unit would last is for years but this situation has caused concern. . I must add that forest river has responded very quickly to my complaint and we are taking our trailer in on Tuesday. Will keep you all posted. Check you frames!!
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Old 02-03-2013, 09:52 PM   #20
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I would love to know if the OP was using a bike rack on the back of the camper.
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