Hi Keroppi . . . perhaps I need to clarify. My point was with respect to so called 'service parts': shoes, replacement cylinders, cylinder rebuild kits, brake job hardware etc. Service parts are replaced every time the brakes are serviced. There was a time in the past that Huck service parts were being ignored in the aftermarket because of lack of demand. But demand has surged and there are re-manufactured 'service parts' a plenty.

As for the specific part of the Huck system that you have mentioned - only the 'lock' is a service part:
Anchor Pin Locking Clip


While the anchor pins and springs themselves - these were dealer only parts that were considered usable for the life of the vehicle. If they were lost or damaged then one had to go to a dealer parts counter for replacements - that is until they were considered obsolete. Then one could only find them at long established dealers with old stock still on the shelf - or at a bone yard.

regards,
stock49