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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Jacking For Tire Change

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Bluedog

Colorado

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Posted: 08/03/22 02:17pm Link  |  Quote  |  Print  |  Notify Moderator

Seems there is a lot of controversy over where to place a jack on a 2-axle travel trailer to change a single tire or service wheel bearings. Experts say under the U-bolt plate is not OK because of the danger of bending the axle. Question is how can the axle get bent when you are lifting the suspension system at the U-bolt location which is built to handle it. Same as driving the single wheel up on a 2 inch board. Some experts say to place the jack under the frame behind the wheel which appears to me to invite damage to the frame more so than the axle method. Also, this way the trailer has to be lifted quite high for the springs to extend and lift the tire off the ground. Under the U-bolt only requires a few inches to get the tire up.

Please enlighten me!

Lwiddis

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Posted: 08/03/22 03:01pm Link  |  Quote  |  Print  |  Notify Moderator

Use a home built wooden ramp on the good tire on a tandem axle. Safer. Faster. Easier.


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nickthehunter

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Posted: 08/03/22 03:40pm Link  |  Quote  |  Print  |  Notify Moderator

Who are these “experts” you refer to?

Gdetrailer

PA

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Posted: 08/03/22 04:09pm Link  |  Quote  |  Print  |  Notify Moderator

nickthehunter wrote:

Who are these “experts” you refer to?


Perhaps from the "horses mouth", the axle manufacturers?

See page 40 HERE

[image]

Although I suspect Dexters take is out of concern with the fact that axles can be over slung or under slung and/or not many flat places to safely use a jack without the potential for it to slip or pop out from under the suspension components..

I am sure that somewhere along the lines folks most likely have used the axle tube and damaged it..

bgum

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Posted: 08/03/22 04:38pm Link  |  Quote  |  Print  |  Notify Moderator

On our Airstream there is a small aluminum square about a foot in back of the axle on each side and is used to mark the jacking point. Under no circumstances should the jack be used on the axle.

klutchdust

Orange, California

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Posted: 08/03/22 04:58pm Link  |  Quote  |  Print  |  Notify Moderator

I have jacked anything from a single axle utility trailer to a loaded semi by placing the jack under the plate that is secured by the u-bolts. As you proceed it compresses the leaf springs and eventually raises the tire. The axle stays straight.
That is the safest way to lift a trailer. Started doing that in 1972. Lifted hundreds of Semi's that way. Travel trailers the same. Stay away from the axle UNLESS it is on a semi trailer. A travel trailer axle is just a pipe, and a weak one at that.

* This post was edited 08/03/22 05:26pm by klutchdust *

Grit dog

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Posted: 08/03/22 05:17pm Link  |  Quote  |  Print  |  Notify Moderator

Literally one the most universally competent places to jack up about any solid axle is under the spring perches or u bolts.
There is nothing special about any of the probably 100 different trailers that I’ve tossed a jack under for one reason or another, that I’ve seen.
In general, if you support it there or under the frame (within reason) and something gets damaged, it wasn’t going to last anyway.
As always common sense applies. If you have a 3000lb buggy sitting over the axles of a toyhauler and you jack up the back corner of the frame, or something like that, you may tweak something.


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time2roll

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Posted: 08/03/22 05:36pm Link  |  Quote  |  Print  |  Notify Moderator

I jack on th U-bolt for minor repairs but don't get under unless there are jack stands supporting the frame.
No issues.


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wanderingbob

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Posted: 08/03/22 05:44pm Link  |  Quote  |  Print  |  Notify Moderator

Never jack , run the good tire up on blocks to lift the bad tire . Use boards or there are several ramps built for this purpose .

Grit dog

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Posted: 08/03/22 06:39pm Link  |  Quote  |  Print  |  Notify Moderator

wanderingbob wrote:

Never jack


Really? Why?

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