I've been asked many times what was a suitable replacement for the langing gear seals in the Jungmann. Here is what I found to work best.
It's a Honda Motorcycle seal PN91255-292-003
You can get one online or visit a local Honda shop. The seal has worked successfully in a couple of Buckers. The cup pictures on the left is stock and the seal will fit right in there. As for the upper seal, I just found a corresponding stock o-ring that was close to size and thickness.
There you go. No more leaky struts!
Brian Karli