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Open Roads Forum  >  Fifth-Wheels

 > Would you pay a welder to reinforce your 5th?

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SidecarFlip

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Posted: 04/27/19 02:35pm Link  |  Quote  |  Print  |  Notify Moderator

If lippert built the frame, it's bound to crack. Lippert hires their 'welders'from fast food resturants. If I owned your RV, I'd do the work myself but then I can weld and own the equipment too.


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Allworth

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Posted: 04/27/19 03:15pm Link  |  Quote  |  Print  |  Notify Moderator

Lippert frames are NOT "bound to crack". If they were there would be no fivers on the road. That kind of Bull doesn't help anybody.

I would have the welder also consider adding gussets to the spring hanger brackets on the frame. That is one thing my son (a certified welder) did for me years ago.


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Bionic Man

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Posted: 04/27/19 03:25pm Link  |  Quote  |  Print  |  Notify Moderator

I had the frame on my 5er reinforced when I added a hitch to the back of it.

Sadly, RVs are not know for high quality. If you have the chance to improve it for a reasonable amount of $, I say go for it.


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Posted: 04/27/19 03:48pm Link  |  Quote  |  Print  |  Notify Moderator

If engineers have evaluated the pin box flex and consider it within spec I would definitely leave it alone unless for some reason you believe this welder is more knowledgeable then the engineers.


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Durb

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Posted: 04/27/19 04:16pm Link  |  Quote  |  Print  |  Notify Moderator

If you don't already have one, I would consider spending the money you are going to pay a welder and invest in a good air hitch. In my mind, if you reinforce the pin box area, the shock waves are going to move farther down your frame and attack other welds. An air hitch will alleviate the pounding your pin takes by softening the joint. It will take the bouncing energy your truck and trailer develops and convert it into heat, then dissipate it into the atmosphere. Without a soft joint, frame flex gets to dissipate the energy.

Leeski Clan

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Posted: 04/27/19 04:57pm Link  |  Quote  |  Print  |  Notify Moderator

Durb wrote:

If you don't already have one, I would consider spending the money you are going to pay a welder and invest in a good air hitch. In my mind, if you reinforce the pin box area, the shock waves are going to move farther down your frame and attack other welds. An air hitch will alleviate the pounding your pin takes by softening the joint. It will take the bouncing energy your truck and trailer develops and convert it into heat, then dissipate it into the atmosphere. Without a soft joint, frame flex gets to dissipate the energy.


I have a 5th Airborne air pin box on my 5th. In looking at how it is working over bumps and rough roads, it really reduces the jarring on my 5th wheel. It virtually eliminated the chucking that I got with the stock pin box.


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ppine

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Posted: 04/27/19 05:21pm Link  |  Quote  |  Print  |  Notify Moderator

I remember having a conversation with a good welder working on my trailer. "Do you think this break might happen again" I asked. "Probably" he said. "How about adding some supports (gussets) so it won't happen again?" "Okay" he said. And it never had a problem again.

Mechanical solutions are the best. I would rather have a strong frame that is a little stiff than a weak one than can break.

mt1729

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Posted: 04/27/19 10:16pm Link  |  Quote  |  Print  |  Notify Moderator

Yes. If I had any doubts at all about the integrity of the frame. Better safe with a little overkill then sorry without.


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Posted: 04/28/19 12:08am Link  |  Quote  |  Print  |  Notify Moderator

The way I read the response is...yes it will void the frame warranty if in any way they can blame your reinforcing.

Problem is when you just slap on new reinforcing, it may redirect forces to areas that were not designed to take those forces.

If you find a bad weld, by all means...document and then fix it. But randomly welding extra stuff on is just as likely to cause problems as solve them.


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fj12ryder

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Posted: 04/28/19 07:13am Link  |  Quote  |  Print  |  Notify Moderator

To be honest, I don't think there's a huge amount of engineering that goes into these frames. Otherwise there wouldn't be the failures there are. Maybe they're designed to flex, maybe they are just designed...period. I would gusset the heck out of it where it flexes.

As far as "If lippert built the frame, it's bound to crack.", that's just nonsense and spouting off. There are tons of Lippert frames on the road with no issues...mine included.


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