there may be enough OE hooks to go around but unfortunately they're all owned by three people
so no doubt why folks are out there trying to repop this stuff for the rest of the folks that didn't start hoarding rare items 40 years ago..
this particular guy may not have it completely right, but it's hypocritical to berate him for doing exactly what every classic restoration parts house in the country is doing..
as for the cast, forged, etc. argument, who are you going to sue when the OE hook breaks, GM?
anyone that has a clue about towing or recovery knows how to rig everything with failure in mind and keep personnel out of harms way..
and nothing is guaranteed even with a weight rating from ANSI, OSHA, ASME, DOT, FMVSS, etc..
shackles and d-rings are typically load rated while hooks are typically not.. keeping that in mind will generally keep folks out of trouble..
so back to this guy, he just needs to delete the cast number and forge them and sell for full function like hotcakes..
this guy broke the ice, give it a few months and LMC and the like will have these in a catalog soon enough..