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07-08-2013, 05:02 AM
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#61
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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First, I'm very happy to hear that you and your love ones are safe, and also the other people on the highway at the same time. Consider yourself lucky that you are at a good CG that would be able to help you out. I agree with all of Bakkens post. I can not even see my underside of the pin box without dropping the metal enclosure under it. As stated it would be a good time to reinforce and strengthen that whole area. any welder worth his salt can weld it up again, but lets make sure it will not happen again. by adding some beef to it. I think in your post you said it was a Wildcat? If it was get a note out to Chris the wildcat guy and show him. A 5 year old trailer should not have a problem like that. I'm sorry you have to go through this, that is one area in my limited knowledge that no corners should be cut. I wouldn't worry about adding the extra weight it really would be minimal and you surely want to be safe. Please take pictures of the repair and post them. Good luck and I hope that you will still enjoy your vacation, after this set back.
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Coachmen M/H
Concord
2018 / 300 DSC
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07-08-2013, 05:48 AM
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#62
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by RodeoGeorge
I am considering a Trail Air Tri-Glide Pin Box for my 8289WS. Do any of you structural engineer types think that this might help in mitigating this type of stress failure? I have a very heavy RAM 3500 Cab & Chassis that can jerk that pin box around. RodeoGeorge
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Anything that will lessen the shock loads will reduce the stress on the superstucture. The constant 'dolphining/chucking' inherent with 5ers also contributes. I installed shocks on our 5er and eliminated those 2 problems. No doubt there are those that will argue it has nothing to do with the stress problem.
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07-08-2013, 06:33 AM
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#63
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Senior Member
Join Date: Sep 2011
Location: Komoka Ontario
Posts: 2,680
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Quote:
Originally Posted by wneise
It looks like something that LCI should be responsible for. Welding softens the steel around the heated joint. Six years of softness and flexing cause the paint to loose adhesion giving way to rust, further weakening the area around joint. The frame should have been assembled down to the suspension brackets and then hardened. You know, just like a motorhome or bug rig frame.
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Where does this idea come from?
__________________
"Well that didn't go as expected"
2015 Chev 2500HD Highcountry Duramax
Cedar Creek Silverback 33IK
Donald&Casey cairn terrier
Rest in Peace Mary my darling wife.
Scottish by birth Canadian by time.
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07-08-2013, 06:37 AM
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#64
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Senior Member
Join Date: Jul 2012
Posts: 1,258
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Quote:
Originally Posted by RodeoGeorge
I am considering a Trail Air Tri-Glide Pin Box for my 8289WS. Do any of you structural engineer types think that this might help in mitigating this type of stress failure?
I have a very heavy RAM 3500 Cab & Chassis that can jerk that pin box around.
RodeoGeorge
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No doubt that the stiffer the truck suspension, the more impact force the camper structure will experience. I put air bags on our truck for that very reason. So yes, a Trail-Air pin box should certainly help. I have considered that as well, but dang, they're expensive!
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07-08-2013, 06:55 AM
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#65
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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For those with the facilities, adding shocks is a cheaper way to stop the dolphining/chucking and greatly improves the ride in the truck.
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07-08-2013, 06:59 AM
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#66
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Senior Member
Join Date: Jul 2012
Posts: 1,258
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Quote:
Originally Posted by DDC
Where does this idea come from?
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Misinformation?
Camper frames use mild steel, so welding on them is not the same issue as welding on the high-strength hydro-formed frames of newer trucks.
And the comments were made looking at the pictures the OP provided, but those pictures show the aftermath of the root cause of the failure, and not where the failure actually started. The rear of the pin box was ripped out of the frame member as the front of the pinbox rotated up, as the front main beam collapsed.
Metal fatigue is a killer. Just imagine how many millions of load cycles the pinbox frame goes through while travelling over our deteriorating highways.
It is surprising the campers don't fall apart completely!
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07-08-2013, 07:04 AM
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#67
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Senior Member
Join Date: Jul 2012
Posts: 1,258
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Quote:
Originally Posted by OldCoot
For those with the facilities, adding shocks is a cheaper way to stop the dolphining/chucking and greatly improves the ride in the truck.
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We don't experience any of those effects, so am unfamiliar with your problem. Might have something to do with different trucks.
And don't forget that shocks will transfer more of those road impacts to the camper frame. They may lessen the "chucking" impacts on the pinbox, but increase them elsewhere.
There are always tradeoffs.
But it is good that the camper shocks improved your towing experience.
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07-08-2013, 07:44 AM
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#68
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Member
Join Date: May 2013
Location: Georgia
Posts: 62
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Yikes! Reading about this failure scares the h___ out of me! I have never considered this type of failure would happen, even though it makes sense that it could and did! You can bet I will check mine today! Thanks for letting us know about this. I'm so glad you and your family are OK. Good luck, and keep us posted.
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07-08-2013, 11:25 AM
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#69
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Member
Join Date: Jun 2013
Posts: 33
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Quote:
Originally Posted by gljurczyk
First, I'm very happy to hear that you and your love ones are safe, and also the other people on the highway at the same time. Consider yourself lucky that you are at a good CG that would be able to help you out. I agree with all of Bakkens post. I can not even see my underside of the pin box without dropping the metal enclosure under it. As stated it would be a good time to reinforce and strengthen that whole area. any welder worth his salt can weld it up again, but lets make sure it will not happen again. by adding some beef to it. I think in your post you said it was a Wildcat? If it was get a note out to Chris the wildcat guy and show him. A 5 year old trailer should not have a problem like that. I'm sorry you have to go through this, that is one area in my limited knowledge that no corners should be cut. I wouldn't worry about adding the extra weight it really would be minimal and you surely want to be safe. Please take pictures of the repair and post them. Good luck and I hope that you will still enjoy your vacation, after this set back.
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It is a Wildcat. How do I contact Chris?
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07-08-2013, 11:46 AM
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#70
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by bakken
We don't experience any of those effects, so am unfamiliar with your problem. Might have something to do with different trucks.
And don't forget that shocks will transfer more of those road impacts to the camper frame. They may lessen the "chucking" impacts on the pinbox, but increase them elsewhere.
There are always tradeoffs.
But it is good that the camper shocks improved your towing experience.
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From what I understand talking to others towing 5ers you are the first to say they don't experience dolphining or chucking to some extent. The shocks merely stop the bouncing all vehicles experience without shocks. That's why they put them on all vehicles with suspensions, cars, trucks and even tanks. Don't know where you get that the shocks will transfer more road impacts to the frame. They only control suspension rebound.
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07-08-2013, 11:48 AM
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#71
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Moderator Emeritus
Join Date: Sep 2008
Location: Shenandoah Valley of Virginia
Posts: 9,280
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Quote:
Originally Posted by zactayaus
It is a Wildcat. How do I contact Chris?
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You can PM "Wildcat Chris" here on the forum.
__________________
Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS
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07-08-2013, 11:55 AM
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#72
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Member
Join Date: Jun 2013
Posts: 33
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07-08-2013, 11:58 AM
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#73
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by zactayaus
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That's FANTASTIC news. Hooray for you and Lippert.
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07-08-2013, 12:11 PM
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#74
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Senior Member
Join Date: Jul 2012
Posts: 1,258
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Quote:
Originally Posted by zactayaus
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excellent news.
Give Lippert full credit for stepping up!
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07-08-2013, 05:29 PM
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#75
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Senior Member
Join Date: Mar 2011
Posts: 254
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Keep us posted but that is awesome! I most say I can not believe the service I have received from Forest River and there suppliers unlike another nameless brand I had before!
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07-08-2013, 05:33 PM
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#76
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TeresaInCAL
Join Date: Aug 2012
Location: California foothills
Posts: 416
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Quote:
Originally Posted by zactayaus
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Awesome sauce!!
Are they going to repair your truck too?
__________________
Teresa
2013 f150 Ecoboost 4x4
2009 Gray Wolf, 22BH
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07-08-2013, 05:35 PM
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#77
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Owner/Operator
Join Date: Dec 2012
Location: Chino Valley, AZ
Posts: 671
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That is outstanding news.
Now if Lippery/Ultra-Fab will just make a Trailair Triglide to fit the existing Revolution Pin Box (10" wide) I'll be happy.
So far it looks like the Pin Box on the Rockwoods are a special breed manufactured specifically for the Rockwood.
RodeoGeorge
__________________
2013 Rockwood 8289WS
Mods: Central Vac, PI EMS-HW50C, 2025RV, (2) SCS225 Trojans, PD9260, Awning Remotes & LED Lights, Eliminators, External Water Filter,, Intellijacks
2008 RAM 3500 Cab&Chassis Hauler Bed, B&W Companion Hitch
All My Modifications are at this link:
https://www.forestriverforums.com/for...ons-36212.html
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07-08-2013, 06:14 PM
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#78
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Site Team
Join Date: Mar 2008
Location: Louisville, KY
Posts: 10,525
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Quote:
Originally Posted by zactayaus
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Please post follow up once they fix it.
We'd love a photo or 2 if that's possible.
We are all pulling for you!
__________________
Peace!
Dan & Rita D
2017 Nissan Titan 5.6L King cab 4wd
2016 Evergreen Everlite 242RBS
29' empty nest model. Blue Ox WD hitch
(1 queen bed, large main cabin and huge bathroom)
Camping days 2010-53, 2011-47, 2012-41, 2013-41, 2014-31, 2015-40, 2016-44, 2017-63, 2018-75, 2019-32, 2020-41, 2021-49, 2022-43, 2023-66
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07-08-2013, 07:02 PM
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#79
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Steve & Phyllis
Join Date: Nov 2012
Location: Simpsonville SC
Posts: 207
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Quote:
Originally Posted by zactayaus
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Really happy for you. I hope you and your family enjoy the rest of your trip with no hitches .
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07-08-2013, 07:41 PM
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#80
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Member
Join Date: Jun 2013
Posts: 33
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Quote:
Originally Posted by TeresaInCAL
Awesome sauce!!
Are they going to repair your truck too?
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No, in all honesty I'm just so happy that they are taking care of the camper that I'm not to upset about the truck.
Quote:
Originally Posted by KyDan
Please post follow up once they fix it.
We'd love a photo or 2 if that's possible.
We are all pulling for you!
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I will definitely let everyone know how it goes. I will try and get pics when they are fixing it but it may be hard as we are pretty much living in our camper for the summer and I'll need to get our kiddos out of the way while they are here fixing it. I'll see if my husband can take pics but he's not real good with a camera. lol. Maybe I'll send him out with the kids and I'll stay instead!
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