Forum Discussion
Huntindog
Jul 08, 2014Explorer
JJBIRISH wrote:It took many years before I found out that standard 3500# axles have 2-3/8" tubes as standard.
I don’t know about thin axles, but almost all of the axle tubes that are used for our RV’s are 2 3/8 OD with a 3/16 wall tube (small), and rated at 3500 lbs.…
Above 3500 lbs. up to 5200 lbs. will almost without exception be a 3inch tube with a 3/16” wall (larger)…
When you get into 6000 and 7000 lb. axles you may run into be 3inch tube with ¼” wall or larger OD tubes…
Of course there are smaller tubes for lighter axles that we don’t see too often especially on tandem axle trailers… however bent axles on RV trailers are not all that uncommon… the bend easily and are usually loaded to near the axle limits because of how the trailers are weight rated by reducing the tongue weight from the axle weights…
Hopefully you don’t have a problem getting it fixed but they may not automatically assume responsibility because of low mileage… the do bend easily and it can be caused by the road conditions, curbing, hitting CG tree roots, rocks or stumps, and other things… the axle could be positioned wrong instead of bent and create the same situation…
Good luck
I had thought it was 3", because that is what my first two TTs had. I spun a bearing on the second TT, and it welded to the spindle. When I went to get a new axle, that is when I found out that my TTs axles had been upgraded by the manufacturer to 3" tubes. IIRC, they wanted 105.00 for a 2-3/8 axle and 118.00 for the 3" version.. I suppose that over thousands of units that it would add up to a tidy sum.. Kudos to Fleetwood for stepping up and installing a stronger axle.
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