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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > why aren't the frame rails of TT set evenly from the sides?

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schlep1967

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Posted: 12/03/20 12:23pm Link  |  Quote  |  Print  |  Notify Moderator

Without pulling the coroplast you will never know. They may have had to move one side out to accommodate tanks, plumbing or heat ducts toward the back of the trailer.


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Lynnmor

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Posted: 12/03/20 12:48pm Link  |  Quote  |  Print  |  Notify Moderator

Are the wheels equidistant from the sides? Are the springs mounted to the frame rails and are they equidistant there?





trailernovice

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Posted: 12/03/20 01:10pm Link  |  Quote  |  Print  |  Notify Moderator

everything frame-wise is straight and true, just as it came from the factory...no collisions, no twists, no rust or weakness...right at two years old...tracks perfectly...

it just puzzles me why it would be designed with the frame rails offset like that


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Old-Biscuit

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Posted: 12/03/20 01:21pm Link  |  Quote  |  Print  |  Notify Moderator

trailernovice wrote:

everything frame-wise is straight and true, just as it came from the factory...no collisions, no twists, no rust or weakness...right at two years old...tracks perfectly...

it just puzzles me why it would be designed with the frame rails offset like that


Call Jayco and get it straight from the horses mouth

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Posted: 12/03/20 02:29pm Link  |  Quote  |  Print  |  Notify Moderator

Old-Biscuit wrote:

trailernovice wrote:

everything frame-wise is straight and true, just as it came from the factory...no collisions, no twists, no rust or weakness...right at two years old...tracks perfectly...

it just puzzles me why it would be designed with the frame rails offset like that


Call Jayco and get it straight from the horses mouth

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valhalla360

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Posted: 12/03/20 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

Lynnmor wrote:

Are the wheels equidistant from the sides? Are the springs mounted to the frame rails and are they equidistant there?


This is probably the most critical point and assuming the springs sit under the main beams, the wheels on one side would sit 4" further in from the side than the other...or one side would have a much longer cantilever from the springs to wheels.

It should be pretty easy to check out as the frame is usually visible where the axles connect.


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trailernovice

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Posted: 12/03/20 02:42pm Link  |  Quote  |  Print  |  Notify Moderator

Maybe I haven't been clear....this is a design issue...not a 'manufacturing quality' issue...not a 'it got wrecked, and wasn't repaired properly' issue...not a 'he must have thrown the rig out of alignment' issue..

I was hoping there might be an engineer out there who could provide an explanation...it looks and seems funny to me, but I'm sure there's sound reasoning behind the design

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Posted: 12/03/20 03:38pm Link  |  Quote  |  Print  |  Notify Moderator

trailernovice wrote:

Maybe I haven't been clear....this is a design issue...not a 'manufacturing quality' issue...not a 'it got wrecked, and wasn't repaired properly' issue...not a 'he must have thrown the rig out of alignment' issue..

I was hoping there might be an engineer out there who could provide an explanation...it looks and seems funny to me, but I'm sure there's sound reasoning behind the design


I was hoping that you would answer a few simple questions so we could better understand how this thing could function properly.

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Posted: 12/03/20 04:08pm Link  |  Quote  |  Print  |  Notify Moderator

If the bottom of the trailer is covered with coroplast, then perhaps the frame rails are indeed evenly spaced, and what you're seeing that is NOT evenly spaced is just the bumper mount rails sticking out the back? Measure the location of the leaf springs on either side of the trailer; they have to be attached to the actual frame rails.


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BurbMan

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Posted: 12/03/20 07:13pm Link  |  Quote  |  Print  |  Notify Moderator

trailernovice wrote:

I was hoping there might be an engineer out there who could provide an explanation...


There is....and he (or she) works for Jayco. As was suggested 10 or 12 times, if you want to know why it's like that, give them a call.


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