I just posted a new ad on Airstream Classifieds.
Henschen 5000 lb. axle 67in. to outside mounting flanges, 9 1/4 inch center to center bolt pattern.
flanges 11 1/4 inches long. Spindles 7 1/4 long
S/n 3-0433-02. Spindles wrapped with grease. Plus shipping
You can contact us by filling in the form on the right hand column of the ad listing: