My owner's manual does not specifically call out where to jack the trailer up on dual-axle models, "One of the bonuses that result from having independent dura-torque suspension on tandem model Airstreams is the ease with which a flat tire may be changed. On a tandem trailer, to change one of the wheels it is necessary only to drive the remaining wheel on the same side up on a block about 6 inches thickness. The wheel with the flat tire will then clear the ground to a point where it is possible to remove and replace it without the use of a jack..."
That's all well & good, but when I took possesion of my Overlander, it had not moved in 23 years, and driving it up on blocks did not look like a great idea with the shape the tires were in. Laying on my belly to position, and pump a service jack, I was able to jack the trailer up safely, and with no harm to the trailer. I would not prefer to do it this way on the side of the road.
Last week, I dropped the trailer's belly skin from the axles back to the end to work on the black tank. I noticed two, roughly 3" X 3" aluminum "patches", one on either side, about 15 inches back from the axles. The patches, which covered the mail frame rails, appear to be jack points as they do not cover an opening in the belly skin.
Can anyone corroborate this, or explain why they are there?