Charlie,
Thanks for the detailed description of the "innards" of the axle!

Are you saying that the spring action comes from the rubber windingup, not the
steel torsion bar?
 

<<Jim>>

Charlie/Betty Burke wrote:

>
>
> The Dura Torque axle was developed and first used on Airstreams startingin
> 1961. It is made up of a hollow square tube into which four roundrubber billets
> are inserted in to each side after being frozen with nitrogen toshrink them.
> The spindle is inserted in the middle of the four billets. The portionof the
> spindle that is inserted into the axle tube is tapered with shortvanes that
> engage the rubbers. The greater the load, the greater the resistance.The
> resulting spring action is very linear and the rebound, with theshock is very
> even and gentle. The Dura Torque axle is considered in the trailerindustry to
> be the smoothest riding and therefore a premium axle. They can actuallybe
> rebuilt if necessary.
>
> Charlie
> '61 Bambi

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