Axle date stamp

[KYAirstream]

I have what I believe is a 1979 (I31-B9J-2240), but the date stamp on the axle shows a patent number followed by "CAN" and then 1970. Was my axle already 9 years old at the time of install?

[Glenritas]

Consult Andy at Inland RV.

The 1970 may be the patent date .

[Inland RV Center, In]

Originally Posted by KYAirstream

I have what I believe is a 1979 (I31-B9J-2240), but the date stamp on the axle shows a patent number followed by "CAN" and then 1970. Was my axle already 9 years old at the time of install?

That's when Canada approved that torsion axle model.

Andy

[KYAirstream]

I don't see another date on the axle, but thought they all had a manufacture date as well?

[Inland RV Center, In]

Originally Posted by KYAirstream

I don't see another date on the axle, but thought they all had a manufacture date as well?

If it's the original axle, the date of it would be no more than 30 to 90 days before the date of the trailer manufacture.

But, if sand lightly into the plate, you might find a date.

Andy

[nrgtrakr]

Out of curiosity I did just that. This is the from the front axle of a 1975 Overlander. The only useful information I've gleaned from this potential trivia pursuit is that the axles are likely original and the brakes are possibly newer since there are wire nuts and butt splice connectors on the wires. Better inspection once the 4 ton floor jack arrives.

[KYAirstream]

My tag is similar, with the exception of showing a 3200lb rating. As you stated, it appears the axles are original. Oddly, my Airstream seems to ride well with very little jostling around inside. I've purposely left things on the counter only to find them in the same place after driving awhile.

[nrgtrakr]

Using the Inland RV axle guide mine are neither positive nor negative - the arms are more or less level (0).

Dura Torque Axle

We bought ours about 6 weeks ago and towed it without an equalizer hitch or anti-sway ~200 winding mountain road miles home with a stretch of heavy cross winds. It towed as if it wasn't there, the few things inside didn't move at all, and no signs of unhappy rivets, but then again it wasn't loaded.

One tip I read about, and I've used it on trucks, put a piece of tape on the bottom out bumper above the axle (if it has one), go for a drive and see if the tape gets marked.

Our current plans are winter in Texas and change axles there (if needed). But we'll likely at least change the tires even though there are no signs of cracking and they hold air. The best I can tell three are from 1995, one from 1989. Book tire answer says "run away!" Experience with military trucks says "yawn".